Migrate content/common/gpu/media code to media/gpu

content/common/gpu/media/dxva_video_decode_accelerator_win.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/common/gpu/media/dxva_video_decode_accelerator_win.h"
-
-#include <memory>
-
-#if !defined(OS_WIN)
-#error This file should only be built on Windows.
-#endif   // !defined(OS_WIN)
-
-#include <codecapi.h>
-#include <dxgi1_2.h>
-#include <ks.h>
-#include <mfapi.h>
-#include <mferror.h>
-#include <ntverp.h>
-#include <stddef.h>
-#include <string.h>
-#include <wmcodecdsp.h>
-
-#include "base/base_paths_win.h"
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/debug/alias.h"
-#include "base/file_version_info.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/shared_memory.h"
-#include "base/message_loop/message_loop.h"
-#include "base/path_service.h"
-#include "base/trace_event/trace_event.h"
-#include "base/win/windows_version.h"
-#include "build/build_config.h"
-#include "media/base/win/mf_initializer.h"
-#include "media/video/video_decode_accelerator.h"
-#include "third_party/angle/include/EGL/egl.h"
-#include "third_party/angle/include/EGL/eglext.h"
-#include "ui/gl/gl_bindings.h"
-#include "ui/gl/gl_context.h"
-#include "ui/gl/gl_fence.h"
-#include "ui/gl/gl_surface_egl.h"
-
-namespace {
-
-// Path is appended on to the PROGRAM_FILES base path.
-const wchar_t kVPXDecoderDLLPath[] = L"Intel\\Media SDK\\";
-
-const wchar_t kVP8DecoderDLLName[] =
-#if defined(ARCH_CPU_X86)
-  L"mfx_mft_vp8vd_32.dll";
-#elif defined(ARCH_CPU_X86_64)
-  L"mfx_mft_vp8vd_64.dll";
-#else
-#error Unsupported Windows CPU Architecture
-#endif
-
-const wchar_t kVP9DecoderDLLName[] =
-#if defined(ARCH_CPU_X86)
-  L"mfx_mft_vp9vd_32.dll";
-#elif defined(ARCH_CPU_X86_64)
-  L"mfx_mft_vp9vd_64.dll";
-#else
-#error Unsupported Windows CPU Architecture
-#endif
-
-const CLSID CLSID_WebmMfVp8Dec = {
-  0x451e3cb7,
-  0x2622,
-  0x4ba5,
-  { 0x8e, 0x1d, 0x44, 0xb3, 0xc4, 0x1d, 0x09, 0x24 }
-};
-
-const CLSID CLSID_WebmMfVp9Dec = {
-  0x07ab4bd2,
-  0x1979,
-  0x4fcd,
-  { 0xa6, 0x97, 0xdf, 0x9a, 0xd1, 0x5b, 0x34, 0xfe }
-};
-
-const CLSID MEDIASUBTYPE_VP80 = {
-  0x30385056,
-  0x0000,
-  0x0010,
-  { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
-};
-
-const CLSID MEDIASUBTYPE_VP90 = {
-  0x30395056,
-  0x0000,
-  0x0010,
-  { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
-};
-
-// The CLSID of the video processor media foundation transform which we use for
-// texture color conversion in DX11.
-// Defined in mfidl.h in the Windows 10 SDK. ntverp.h provides VER_PRODUCTBUILD
-// to detect which SDK we are compiling with.
-#if VER_PRODUCTBUILD < 10011  // VER_PRODUCTBUILD for 10.0.10158.0 SDK.
-DEFINE_GUID(CLSID_VideoProcessorMFT,
-            0x88753b26, 0x5b24, 0x49bd, 0xb2, 0xe7, 0xc, 0x44, 0x5c, 0x78,
-            0xc9, 0x82);
-#endif
-
-// MF_XVP_PLAYBACK_MODE
-// Data type: UINT32 (treat as BOOL)
-// If this attribute is TRUE, the video processor will run in playback mode
-// where it allows callers to allocate output samples and allows last frame
-// regeneration (repaint).
-DEFINE_GUID(MF_XVP_PLAYBACK_MODE, 0x3c5d293f, 0xad67, 0x4e29, 0xaf, 0x12,
-            0xcf, 0x3e, 0x23, 0x8a, 0xcc, 0xe9);
-
-// Defines the GUID for the Intel H264 DXVA device.
-static const GUID DXVA2_Intel_ModeH264_E = {
-  0x604F8E68, 0x4951, 0x4c54,{ 0x88, 0xFE, 0xAB, 0xD2, 0x5C, 0x15, 0xB3, 0xD6}
-};
-
-// R600, R700, Evergreen and Cayman AMD cards. These support DXVA via UVD3
-// or earlier, and don't handle resolutions higher than 1920 x 1088 well.
-static const DWORD g_AMDUVD3GPUList[] = {
-  0x9400, 0x9401, 0x9402, 0x9403, 0x9405, 0x940a, 0x940b, 0x940f, 0x94c0,
-  0x94c1, 0x94c3, 0x94c4, 0x94c5, 0x94c6, 0x94c7, 0x94c8, 0x94c9, 0x94cb,
-  0x94cc, 0x94cd, 0x9580, 0x9581, 0x9583, 0x9586, 0x9587, 0x9588, 0x9589,
-  0x958a, 0x958b, 0x958c, 0x958d, 0x958e, 0x958f, 0x9500, 0x9501, 0x9504,
-  0x9505, 0x9506, 0x9507, 0x9508, 0x9509, 0x950f, 0x9511, 0x9515, 0x9517,
-  0x9519, 0x95c0, 0x95c2, 0x95c4, 0x95c5, 0x95c6, 0x95c7, 0x95c9, 0x95cc,
-  0x95cd, 0x95ce, 0x95cf, 0x9590, 0x9591, 0x9593, 0x9595, 0x9596, 0x9597,
-  0x9598, 0x9599, 0x959b, 0x9610, 0x9611, 0x9612, 0x9613, 0x9614, 0x9615,
-  0x9616, 0x9710, 0x9711, 0x9712, 0x9713, 0x9714, 0x9715, 0x9440, 0x9441,
-  0x9442, 0x9443, 0x9444, 0x9446, 0x944a, 0x944b, 0x944c, 0x944e, 0x9450,
-  0x9452, 0x9456, 0x945a, 0x945b, 0x945e, 0x9460, 0x9462, 0x946a, 0x946b,
-  0x947a, 0x947b, 0x9480, 0x9487, 0x9488, 0x9489, 0x948a, 0x948f, 0x9490,
-  0x9491, 0x9495, 0x9498, 0x949c, 0x949e, 0x949f, 0x9540, 0x9541, 0x9542,
-  0x954e, 0x954f, 0x9552, 0x9553, 0x9555, 0x9557, 0x955f, 0x94a0, 0x94a1,
-  0x94a3, 0x94b1, 0x94b3, 0x94b4, 0x94b5, 0x94b9, 0x68e0, 0x68e1, 0x68e4,
-  0x68e5, 0x68e8, 0x68e9, 0x68f1, 0x68f2, 0x68f8, 0x68f9, 0x68fa, 0x68fe,
-  0x68c0, 0x68c1, 0x68c7, 0x68c8, 0x68c9, 0x68d8, 0x68d9, 0x68da, 0x68de,
-  0x68a0, 0x68a1, 0x68a8, 0x68a9, 0x68b0, 0x68b8, 0x68b9, 0x68ba, 0x68be,
-  0x68bf, 0x6880, 0x6888, 0x6889, 0x688a, 0x688c, 0x688d, 0x6898, 0x6899,
-  0x689b, 0x689e, 0x689c, 0x689d, 0x9802, 0x9803, 0x9804, 0x9805, 0x9806,
-  0x9807, 0x9808, 0x9809, 0x980a, 0x9640, 0x9641, 0x9647, 0x9648, 0x964a,
-  0x964b, 0x964c, 0x964e, 0x964f, 0x9642, 0x9643, 0x9644, 0x9645, 0x9649,
-  0x6720, 0x6721, 0x6722, 0x6723, 0x6724, 0x6725, 0x6726, 0x6727, 0x6728,
-  0x6729, 0x6738, 0x6739, 0x673e, 0x6740, 0x6741, 0x6742, 0x6743, 0x6744,
-  0x6745, 0x6746, 0x6747, 0x6748, 0x6749, 0x674a, 0x6750, 0x6751, 0x6758,
-  0x6759, 0x675b, 0x675d, 0x675f, 0x6840, 0x6841, 0x6842, 0x6843, 0x6849,
-  0x6850, 0x6858, 0x6859, 0x6760, 0x6761, 0x6762, 0x6763, 0x6764, 0x6765,
-  0x6766, 0x6767, 0x6768, 0x6770, 0x6771, 0x6772, 0x6778, 0x6779, 0x677b,
-  0x6700, 0x6701, 0x6702, 0x6703, 0x6704, 0x6705, 0x6706, 0x6707, 0x6708,
-  0x6709, 0x6718, 0x6719, 0x671c, 0x671d, 0x671f, 0x683D, 0x9900, 0x9901,
-  0x9903, 0x9904, 0x9905, 0x9906, 0x9907, 0x9908, 0x9909, 0x990a, 0x990b,
-  0x990c, 0x990d, 0x990e, 0x990f, 0x9910, 0x9913, 0x9917, 0x9918, 0x9919,
-  0x9990, 0x9991, 0x9992, 0x9993, 0x9994, 0x9995, 0x9996, 0x9997, 0x9998,
-  0x9999, 0x999a, 0x999b, 0x999c, 0x999d, 0x99a0, 0x99a2, 0x99a4,
-};
-
-// Legacy Intel GPUs (Second generation) which have trouble with resolutions
-// higher than 1920 x 1088
-static const DWORD g_IntelLegacyGPUList[] = {
-  0x102, 0x106, 0x116, 0x126,
-};
-
-// Provides scoped access to the underlying buffer in an IMFMediaBuffer
-// instance.
-class MediaBufferScopedPointer {
- public:
-  MediaBufferScopedPointer(IMFMediaBuffer* media_buffer)
-      : media_buffer_(media_buffer),
-        buffer_(nullptr),
-        max_length_(0),
-        current_length_(0) {
-    HRESULT hr = media_buffer_->Lock(&buffer_, &max_length_, &current_length_);
-    CHECK(SUCCEEDED(hr));
-  }
-
-  ~MediaBufferScopedPointer() {
-    HRESULT hr = media_buffer_->Unlock();
-    CHECK(SUCCEEDED(hr));
-  }
-
-  uint8_t* get() {
-    return buffer_;
-  }
-
-  DWORD current_length() const {
-    return current_length_;
-  }
-
- private:
-  base::win::ScopedComPtr<IMFMediaBuffer> media_buffer_;
-  uint8_t* buffer_;
-  DWORD max_length_;
-  DWORD current_length_;
-
-  DISALLOW_COPY_AND_ASSIGN(MediaBufferScopedPointer);
-};
-
-}  // namespace
-
-namespace content {
-
-static const media::VideoCodecProfile kSupportedProfiles[] = {
-  media::H264PROFILE_BASELINE,
-  media::H264PROFILE_MAIN,
-  media::H264PROFILE_HIGH,
-  media::VP8PROFILE_ANY,
-  media::VP9PROFILE_PROFILE0,
-  media::VP9PROFILE_PROFILE1,
-  media::VP9PROFILE_PROFILE2,
-  media::VP9PROFILE_PROFILE3
-};
-
-CreateDXGIDeviceManager DXVAVideoDecodeAccelerator::create_dxgi_device_manager_
-    = NULL;
-
-#define RETURN_ON_FAILURE(result, log, ret)  \
-  do {                                       \
-    if (!(result)) {                         \
-      DLOG(ERROR) << log;                    \
-      return ret;                            \
-    }                                        \
-  } while (0)
-
-#define RETURN_ON_HR_FAILURE(result, log, ret)                    \
-  RETURN_ON_FAILURE(SUCCEEDED(result),                            \
-                    log << ", HRESULT: 0x" << std::hex << result, \
-                    ret);
-
-#define RETURN_AND_NOTIFY_ON_FAILURE(result, log, error_code, ret)  \
-  do {                                                              \
-    if (!(result)) {                                                \
-      DVLOG(1) << log;                                              \
-      StopOnError(error_code);                                      \
-      return ret;                                                   \
-    }                                                               \
-  } while (0)
-
-#define RETURN_AND_NOTIFY_ON_HR_FAILURE(result, log, error_code, ret)  \
-  RETURN_AND_NOTIFY_ON_FAILURE(SUCCEEDED(result),                      \
-                               log << ", HRESULT: 0x" << std::hex << result, \
-                               error_code, ret);
-
-enum {
-  // Maximum number of iterations we allow before aborting the attempt to flush
-  // the batched queries to the driver and allow torn/corrupt frames to be
-  // rendered.
-  kFlushDecoderSurfaceTimeoutMs = 1,
-  // Maximum iterations where we try to flush the d3d device.
-  kMaxIterationsForD3DFlush = 4,
-  // Maximum iterations where we try to flush the ANGLE device before reusing
-  // the texture.
-  kMaxIterationsForANGLEReuseFlush = 16,
-  // We only request 5 picture buffers from the client which are used to hold
-  // the decoded samples. These buffers are then reused when the client tells
-  // us that it is done with the buffer.
-  kNumPictureBuffers = 5,
-  // The keyed mutex should always be released before the other thread
-  // attempts to acquire it, so AcquireSync should always return immediately.
-  kAcquireSyncWaitMs = 0,
-};
-
-static IMFSample* CreateEmptySample() {
-  base::win::ScopedComPtr<IMFSample> sample;
-  HRESULT hr = MFCreateSample(sample.Receive());
-  RETURN_ON_HR_FAILURE(hr, "MFCreateSample failed", NULL);
-  return sample.Detach();
-}
-
-// Creates a Media Foundation sample with one buffer of length |buffer_length|
-// on a |align|-byte boundary. Alignment must be a perfect power of 2 or 0.
-static IMFSample* CreateEmptySampleWithBuffer(uint32_t buffer_length,
-                                              int align) {
-  CHECK_GT(buffer_length, 0U);
-
-  base::win::ScopedComPtr<IMFSample> sample;
-  sample.Attach(CreateEmptySample());
-
-  base::win::ScopedComPtr<IMFMediaBuffer> buffer;
-  HRESULT hr = E_FAIL;
-  if (align == 0) {
-    // Note that MFCreateMemoryBuffer is same as MFCreateAlignedMemoryBuffer
-    // with the align argument being 0.
-    hr = MFCreateMemoryBuffer(buffer_length, buffer.Receive());
-  } else {
-    hr = MFCreateAlignedMemoryBuffer(buffer_length,
-                                     align - 1,
-                                     buffer.Receive());
-  }
-  RETURN_ON_HR_FAILURE(hr, "Failed to create memory buffer for sample", NULL);
-
-  hr = sample->AddBuffer(buffer.get());
-  RETURN_ON_HR_FAILURE(hr, "Failed to add buffer to sample", NULL);
-
-  buffer->SetCurrentLength(0);
-  return sample.Detach();
-}
-
-// Creates a Media Foundation sample with one buffer containing a copy of the
-// given Annex B stream data.
-// If duration and sample time are not known, provide 0.
-// |min_size| specifies the minimum size of the buffer (might be required by
-// the decoder for input). If no alignment is required, provide 0.
-static IMFSample* CreateInputSample(const uint8_t* stream,
-                                    uint32_t size,
-                                    uint32_t min_size,
-                                    int alignment) {
-  CHECK(stream);
-  CHECK_GT(size, 0U);
-  base::win::ScopedComPtr<IMFSample> sample;
-  sample.Attach(CreateEmptySampleWithBuffer(std::max(min_size, size),
-                                            alignment));
-  RETURN_ON_FAILURE(sample.get(), "Failed to create empty sample", NULL);
-
-  base::win::ScopedComPtr<IMFMediaBuffer> buffer;
-  HRESULT hr = sample->GetBufferByIndex(0, buffer.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to get buffer from sample", NULL);
-
-  DWORD max_length = 0;
-  DWORD current_length = 0;
-  uint8_t* destination = NULL;
-  hr = buffer->Lock(&destination, &max_length, &current_length);
-  RETURN_ON_HR_FAILURE(hr, "Failed to lock buffer", NULL);
-
-  CHECK_EQ(current_length, 0u);
-  CHECK_GE(max_length, size);
-  memcpy(destination, stream, size);
-
-  hr = buffer->SetCurrentLength(size);
-  RETURN_ON_HR_FAILURE(hr, "Failed to set buffer length", NULL);
-
-  hr = buffer->Unlock();
-  RETURN_ON_HR_FAILURE(hr, "Failed to unlock buffer", NULL);
-
-  return sample.Detach();
-}
-
-// Helper function to create a COM object instance from a DLL. The alternative
-// is to use the CoCreateInstance API which requires the COM apartment to be
-// initialized which is not the case on the GPU main thread. We want to avoid
-// initializing COM as it may have sideeffects.
-HRESULT CreateCOMObjectFromDll(HMODULE dll, const CLSID& clsid, const IID& iid,
-                               void** object) {
-  if (!dll || !object)
-    return E_INVALIDARG;
-
-  using GetClassObject = HRESULT (WINAPI*)(
-      const CLSID& clsid, const IID& iid, void** object);
-
-  GetClassObject get_class_object = reinterpret_cast<GetClassObject>(
-      GetProcAddress(dll, "DllGetClassObject"));
-  RETURN_ON_FAILURE(
-      get_class_object, "Failed to get DllGetClassObject pointer", E_FAIL);
-
-  base::win::ScopedComPtr<IClassFactory> factory;
-  HRESULT hr = get_class_object(
-      clsid,
-      __uuidof(IClassFactory),
-      factory.ReceiveVoid());
-  RETURN_ON_HR_FAILURE(hr, "DllGetClassObject failed", hr);
-
-  hr = factory->CreateInstance(NULL, iid, object);
-  return hr;
-}
-
-// Helper function to query the ANGLE device object. The template argument T
-// identifies the device interface being queried. IDirect3DDevice9Ex for d3d9
-// and ID3D11Device for dx11.
-template<class T>
-base::win::ScopedComPtr<T> QueryDeviceObjectFromANGLE(int object_type) {
-  base::win::ScopedComPtr<T> device_object;
-
-  EGLDisplay egl_display = nullptr;
-  intptr_t egl_device = 0;
-  intptr_t device = 0;
-
-  {
-    TRACE_EVENT0("gpu", "QueryDeviceObjectFromANGLE. GetHardwareDisplay");
-    egl_display = gfx::GLSurfaceEGL::GetHardwareDisplay();
-  }
-
-  RETURN_ON_FAILURE(
-      gfx::GLSurfaceEGL::HasEGLExtension("EGL_EXT_device_query"),
-      "EGL_EXT_device_query missing",
-      device_object);
-
-  PFNEGLQUERYDISPLAYATTRIBEXTPROC QueryDisplayAttribEXT = nullptr;
-
-  {
-    TRACE_EVENT0("gpu", "QueryDeviceObjectFromANGLE. eglGetProcAddress");
-
-    QueryDisplayAttribEXT =
-        reinterpret_cast<PFNEGLQUERYDISPLAYATTRIBEXTPROC>(eglGetProcAddress(
-            "eglQueryDisplayAttribEXT"));
-
-    RETURN_ON_FAILURE(
-        QueryDisplayAttribEXT,
-        "Failed to get the eglQueryDisplayAttribEXT function from ANGLE",
-        device_object);
-  }
-
-  PFNEGLQUERYDEVICEATTRIBEXTPROC QueryDeviceAttribEXT = nullptr;
-
-  {
-    TRACE_EVENT0("gpu", "QueryDeviceObjectFromANGLE. eglGetProcAddress");
-
-    QueryDeviceAttribEXT =
-        reinterpret_cast<PFNEGLQUERYDEVICEATTRIBEXTPROC>(eglGetProcAddress(
-            "eglQueryDeviceAttribEXT"));
-
-    RETURN_ON_FAILURE(
-        QueryDeviceAttribEXT,
-        "Failed to get the eglQueryDeviceAttribEXT function from ANGLE",
-        device_object);
-  }
-
-  {
-    TRACE_EVENT0("gpu", "QueryDeviceObjectFromANGLE. QueryDisplayAttribEXT");
-
-    RETURN_ON_FAILURE(
-        QueryDisplayAttribEXT(egl_display, EGL_DEVICE_EXT, &egl_device),
-        "The eglQueryDisplayAttribEXT function failed to get the EGL device",
-        device_object);
-  }
-
-  RETURN_ON_FAILURE(
-      egl_device,
-      "Failed to get the EGL device",
-      device_object);
-
-  {
-    TRACE_EVENT0("gpu", "QueryDeviceObjectFromANGLE. QueryDisplayAttribEXT");
-
-    RETURN_ON_FAILURE(
-        QueryDeviceAttribEXT(
-            reinterpret_cast<EGLDeviceEXT>(egl_device), object_type, &device),
-            "The eglQueryDeviceAttribEXT function failed to get the device",
-            device_object);
-
-    RETURN_ON_FAILURE(device, "Failed to get the ANGLE device", device_object);
-  }
-
-  device_object = reinterpret_cast<T*>(device);
-  return device_object;
-}
-
-H264ConfigChangeDetector::H264ConfigChangeDetector()
-    : last_sps_id_(0),
-      last_pps_id_(0),
-      config_changed_(false),
-      pending_config_changed_(false) {
-}
-
-H264ConfigChangeDetector::~H264ConfigChangeDetector() {
-}
-
-bool H264ConfigChangeDetector::DetectConfig(const uint8_t* stream,
-                                            unsigned int size) {
-  std::vector<uint8_t> sps;
-  std::vector<uint8_t> pps;
-  media::H264NALU nalu;
-  bool idr_seen = false;
-
-  if (!parser_.get())
-    parser_.reset(new media::H264Parser);
-
-  parser_->SetStream(stream, size);
-  config_changed_ = false;
-
-  while (true) {
-    media::H264Parser::Result result = parser_->AdvanceToNextNALU(&nalu);
-
-    if (result == media::H264Parser::kEOStream)
-      break;
-
-    if (result == media::H264Parser::kUnsupportedStream) {
-      DLOG(ERROR) << "Unsupported H.264 stream";
-      return false;
-    }
-
-    if (result != media::H264Parser::kOk) {
-      DLOG(ERROR) << "Failed to parse H.264 stream";
-      return false;
-    }
-
-    switch (nalu.nal_unit_type) {
-      case media::H264NALU::kSPS:
-        result = parser_->ParseSPS(&last_sps_id_);
-        if (result == media::H264Parser::kUnsupportedStream) {
-          DLOG(ERROR) << "Unsupported SPS";
-          return false;
-        }
-
-        if (result != media::H264Parser::kOk) {
-          DLOG(ERROR) << "Could not parse SPS";
-          return false;
-        }
-
-        sps.assign(nalu.data, nalu.data + nalu.size);
-        break;
-
-      case media::H264NALU::kPPS:
-        result = parser_->ParsePPS(&last_pps_id_);
-        if (result == media::H264Parser::kUnsupportedStream) {
-          DLOG(ERROR) << "Unsupported PPS";
-          return false;
-        }
-        if (result != media::H264Parser::kOk) {
-          DLOG(ERROR) << "Could not parse PPS";
-          return false;
-        }
-        pps.assign(nalu.data, nalu.data + nalu.size);
-        break;
-
-      case media::H264NALU::kIDRSlice:
-        idr_seen = true;
-        // If we previously detected a configuration change, and see an IDR
-        // slice next time around, we need to flag a configuration change.
-        if (pending_config_changed_) {
-          config_changed_ = true;
-          pending_config_changed_ = false;
-        }
-        break;
-
-      default:
-        break;
-    }
-  }
-
-  if (!sps.empty() && sps != last_sps_) {
-    if (!last_sps_.empty()) {
-      // Flag configuration changes after we see an IDR slice.
-      if (idr_seen) {
-        config_changed_ = true;
-      } else {
-        pending_config_changed_ = true;
-      }
-    }
-    last_sps_.swap(sps);
-  }
-
-  if (!pps.empty() && pps != last_pps_) {
-    if (!last_pps_.empty()) {
-      // Flag configuration changes after we see an IDR slice.
-      if (idr_seen) {
-        config_changed_ = true;
-      } else {
-        pending_config_changed_ = true;
-      }
-    }
-    last_pps_.swap(pps);
-  }
-  return true;
-}
-
-// Maintains information about a DXVA picture buffer, i.e. whether it is
-// available for rendering, the texture information, etc.
-struct DXVAVideoDecodeAccelerator::DXVAPictureBuffer {
- public:
-  static linked_ptr<DXVAPictureBuffer> Create(
-      const DXVAVideoDecodeAccelerator& decoder,
-      const media::PictureBuffer& buffer,
-      EGLConfig egl_config);
-  ~DXVAPictureBuffer();
-
-  bool InitializeTexture(const DXVAVideoDecodeAccelerator& decoder,
-                         bool use_rgb);
-
-  bool ReusePictureBuffer();
-  void ResetReuseFence();
-  // Copies the output sample data to the picture buffer provided by the
-  // client.
-  // The dest_surface parameter contains the decoded bits.
-  bool CopyOutputSampleDataToPictureBuffer(
-      DXVAVideoDecodeAccelerator* decoder,
-      IDirect3DSurface9* dest_surface,
-      ID3D11Texture2D* dx11_texture,
-      int input_buffer_id);
-
-  bool available() const {
-    return available_;
-  }
-
-  void set_available(bool available) {
-    available_ = available;
-  }
-
-  int id() const {
-    return picture_buffer_.id();
-  }
-
-  gfx::Size size() const {
-    return picture_buffer_.size();
-  }
-
-  bool waiting_to_reuse() const { return waiting_to_reuse_; }
-
-  gfx::GLFence* reuse_fence() { return reuse_fence_.get(); }
-
-  // Called when the source surface |src_surface| is copied to the destination
-  // |dest_surface|
-  bool CopySurfaceComplete(IDirect3DSurface9* src_surface,
-                           IDirect3DSurface9* dest_surface);
-
- private:
-  explicit DXVAPictureBuffer(const media::PictureBuffer& buffer);
-
-  bool available_;
-
-  // This is true if the decoder is currently waiting on the fence before
-  // reusing the buffer.
-  bool waiting_to_reuse_;
-  media::PictureBuffer picture_buffer_;
-  EGLSurface decoding_surface_;
-  std::unique_ptr<gfx::GLFence> reuse_fence_;
-
-  HANDLE texture_share_handle_;
-  base::win::ScopedComPtr<IDirect3DTexture9> decoding_texture_;
-  base::win::ScopedComPtr<ID3D11Texture2D> dx11_decoding_texture_;
-
-  base::win::ScopedComPtr<IDXGIKeyedMutex> egl_keyed_mutex_;
-  base::win::ScopedComPtr<IDXGIKeyedMutex> dx11_keyed_mutex_;
-
-  // This is the last value that was used to release the keyed mutex.
-  uint64_t keyed_mutex_value_;
-
-  // The following |IDirect3DSurface9| interface pointers are used to hold
-  // references on the surfaces during the course of a StretchRect operation
-  // to copy the source surface to the target. The references are released
-  // when the StretchRect operation i.e. the copy completes.
-  base::win::ScopedComPtr<IDirect3DSurface9> decoder_surface_;
-  base::win::ScopedComPtr<IDirect3DSurface9> target_surface_;
-
-  // This ID3D11Texture2D interface pointer is used to hold a reference to the
-  // decoder texture during the course of a copy operation. This reference is
-  // released when the copy completes.
-  base::win::ScopedComPtr<ID3D11Texture2D> decoder_dx11_texture_;
-
-  // Set to true if RGB is supported by the texture.
-  // Defaults to true.
-  bool use_rgb_;
-
-  DISALLOW_COPY_AND_ASSIGN(DXVAPictureBuffer);
-};
-
-// static
-linked_ptr<DXVAVideoDecodeAccelerator::DXVAPictureBuffer>
-DXVAVideoDecodeAccelerator::DXVAPictureBuffer::Create(
-    const DXVAVideoDecodeAccelerator& decoder,
-    const media::PictureBuffer& buffer,
-    EGLConfig egl_config) {
-  linked_ptr<DXVAPictureBuffer> picture_buffer(new DXVAPictureBuffer(buffer));
-
-  EGLDisplay egl_display = gfx::GLSurfaceEGL::GetHardwareDisplay();
-
-  EGLint use_rgb = 1;
-  eglGetConfigAttrib(egl_display, egl_config, EGL_BIND_TO_TEXTURE_RGB,
-                     &use_rgb);
-
-  if (!picture_buffer->InitializeTexture(decoder, !!use_rgb))
-    return linked_ptr<DXVAPictureBuffer>(nullptr);
-
-  EGLint attrib_list[] = {
-    EGL_WIDTH, buffer.size().width(),
-    EGL_HEIGHT, buffer.size().height(),
-    EGL_TEXTURE_FORMAT, use_rgb ? EGL_TEXTURE_RGB : EGL_TEXTURE_RGBA,
-    EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
-    EGL_NONE
-  };
-
-  picture_buffer->decoding_surface_ = eglCreatePbufferFromClientBuffer(
-      egl_display, EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE,
-      picture_buffer->texture_share_handle_, egl_config, attrib_list);
-  RETURN_ON_FAILURE(picture_buffer->decoding_surface_,
-                    "Failed to create surface",
-                    linked_ptr<DXVAPictureBuffer>(NULL));
-  if (decoder.d3d11_device_ && decoder.use_keyed_mutex_) {
-    void* keyed_mutex = nullptr;
-    EGLBoolean ret = eglQuerySurfacePointerANGLE(
-        egl_display, picture_buffer->decoding_surface_,
-        EGL_DXGI_KEYED_MUTEX_ANGLE, &keyed_mutex);
-    RETURN_ON_FAILURE(keyed_mutex && ret == EGL_TRUE,
-                      "Failed to query ANGLE keyed mutex",
-                      linked_ptr<DXVAPictureBuffer>(nullptr));
-    picture_buffer->egl_keyed_mutex_ = base::win::ScopedComPtr<IDXGIKeyedMutex>(
-        static_cast<IDXGIKeyedMutex*>(keyed_mutex));
-  }
-  picture_buffer->use_rgb_ = !!use_rgb;
-  return picture_buffer;
-}
-
-bool DXVAVideoDecodeAccelerator::DXVAPictureBuffer::InitializeTexture(
-    const DXVAVideoDecodeAccelerator& decoder,
-    bool use_rgb) {
-  DCHECK(!texture_share_handle_);
-  if (decoder.d3d11_device_) {
-    D3D11_TEXTURE2D_DESC desc;
-    desc.Width = picture_buffer_.size().width();
-    desc.Height = picture_buffer_.size().height();
-    desc.MipLevels = 1;
-    desc.ArraySize = 1;
-    desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
-    desc.SampleDesc.Count = 1;
-    desc.SampleDesc.Quality = 0;
-    desc.Usage = D3D11_USAGE_DEFAULT;
-    desc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;
-    desc.CPUAccessFlags = 0;
-    desc.MiscFlags = decoder.use_keyed_mutex_
-                         ? D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX
-                         : D3D11_RESOURCE_MISC_SHARED;
-
-    HRESULT hr = decoder.d3d11_device_->CreateTexture2D(
-        &desc, nullptr, dx11_decoding_texture_.Receive());
-    RETURN_ON_HR_FAILURE(hr, "Failed to create texture", false);
-    if (decoder.use_keyed_mutex_) {
-      hr = dx11_keyed_mutex_.QueryFrom(dx11_decoding_texture_.get());
-      RETURN_ON_HR_FAILURE(hr, "Failed to get keyed mutex", false);
-    }
-
-    base::win::ScopedComPtr<IDXGIResource> resource;
-    hr = resource.QueryFrom(dx11_decoding_texture_.get());
-    DCHECK(SUCCEEDED(hr));
-    hr = resource->GetSharedHandle(&texture_share_handle_);
-    RETURN_ON_FAILURE(SUCCEEDED(hr) && texture_share_handle_,
-                      "Failed to query shared handle", false);
-
-  } else {
-    HRESULT hr = E_FAIL;
-    hr = decoder.d3d9_device_ex_->CreateTexture(
-        picture_buffer_.size().width(), picture_buffer_.size().height(), 1,
-        D3DUSAGE_RENDERTARGET, use_rgb ? D3DFMT_X8R8G8B8 : D3DFMT_A8R8G8B8,
-        D3DPOOL_DEFAULT, decoding_texture_.Receive(), &texture_share_handle_);
-    RETURN_ON_HR_FAILURE(hr, "Failed to create texture", false);
-    RETURN_ON_FAILURE(texture_share_handle_, "Failed to query shared handle",
-                      false);
-  }
-  return true;
-}
-
-DXVAVideoDecodeAccelerator::DXVAPictureBuffer::DXVAPictureBuffer(
-    const media::PictureBuffer& buffer)
-    : available_(true),
-      waiting_to_reuse_(false),
-      picture_buffer_(buffer),
-      decoding_surface_(NULL),
-      texture_share_handle_(nullptr),
-      keyed_mutex_value_(0),
-      use_rgb_(true) {}
-
-DXVAVideoDecodeAccelerator::DXVAPictureBuffer::~DXVAPictureBuffer() {
-  if (decoding_surface_) {
-    EGLDisplay egl_display = gfx::GLSurfaceEGL::GetHardwareDisplay();
-
-    eglReleaseTexImage(
-        egl_display,
-        decoding_surface_,
-        EGL_BACK_BUFFER);
-
-    eglDestroySurface(
-        egl_display,
-        decoding_surface_);
-    decoding_surface_ = NULL;
-  }
-}
-
-bool DXVAVideoDecodeAccelerator::DXVAPictureBuffer::ReusePictureBuffer() {
-  DCHECK(decoding_surface_);
-  EGLDisplay egl_display = gfx::GLSurfaceEGL::GetHardwareDisplay();
-  eglReleaseTexImage(
-    egl_display,
-    decoding_surface_,
-    EGL_BACK_BUFFER);
-  decoder_surface_.Release();
-  target_surface_.Release();
-  decoder_dx11_texture_.Release();
-  waiting_to_reuse_ = false;
-  set_available(true);
-  if (egl_keyed_mutex_) {
-    HRESULT hr = egl_keyed_mutex_->ReleaseSync(++keyed_mutex_value_);
-    RETURN_ON_FAILURE(hr == S_OK, "Could not release sync mutex", false);
-  }
-  return true;
-}
-
-void DXVAVideoDecodeAccelerator::DXVAPictureBuffer::ResetReuseFence() {
-  if (!reuse_fence_ || !reuse_fence_->ResetSupported())
-    reuse_fence_.reset(gfx::GLFence::Create());
-  else
-    reuse_fence_->ResetState();
-  waiting_to_reuse_ = true;
-}
-
-bool DXVAVideoDecodeAccelerator::DXVAPictureBuffer::
-    CopyOutputSampleDataToPictureBuffer(
-        DXVAVideoDecodeAccelerator* decoder,
-        IDirect3DSurface9* dest_surface,
-        ID3D11Texture2D* dx11_texture,
-        int input_buffer_id) {
-  DCHECK(dest_surface || dx11_texture);
-  if (dx11_texture) {
-    // Grab a reference on the decoder texture. This reference will be released
-    // when we receive a notification that the copy was completed or when the
-    // DXVAPictureBuffer instance is destroyed.
-    decoder_dx11_texture_ = dx11_texture;
-    decoder->CopyTexture(dx11_texture, dx11_decoding_texture_.get(),
-                         dx11_keyed_mutex_, keyed_mutex_value_, NULL, id(),
-                         input_buffer_id);
-    return true;
-  }
-  D3DSURFACE_DESC surface_desc;
-  HRESULT hr = dest_surface->GetDesc(&surface_desc);
-  RETURN_ON_HR_FAILURE(hr, "Failed to get surface description", false);
-
-  D3DSURFACE_DESC texture_desc;
-  decoding_texture_->GetLevelDesc(0, &texture_desc);
-
-  if (texture_desc.Width != surface_desc.Width ||
-      texture_desc.Height != surface_desc.Height) {
-    NOTREACHED() << "Decode surface of different dimension than texture";
-    return false;
-  }
-
-  hr = decoder->d3d9_->CheckDeviceFormatConversion(
-      D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, surface_desc.Format,
-      use_rgb_ ? D3DFMT_X8R8G8B8 : D3DFMT_A8R8G8B8);
-  RETURN_ON_HR_FAILURE(hr, "Device does not support format converision", false);
-
-  // The same picture buffer can be reused for a different frame. Release the
-  // target surface and the decoder references here.
-  target_surface_.Release();
-  decoder_surface_.Release();
-
-  // Grab a reference on the decoder surface and the target surface. These
-  // references will be released when we receive a notification that the
-  // copy was completed or when the DXVAPictureBuffer instance is destroyed.
-  // We hold references here as it is easier to manage their lifetimes.
-  hr = decoding_texture_->GetSurfaceLevel(0, target_surface_.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to get surface from texture", false);
-
-  decoder_surface_ = dest_surface;
-
-  decoder->CopySurface(decoder_surface_.get(), target_surface_.get(), id(),
-                       input_buffer_id);
-  return true;
-}
-
-bool DXVAVideoDecodeAccelerator::DXVAPictureBuffer::CopySurfaceComplete(
-    IDirect3DSurface9* src_surface,
-    IDirect3DSurface9* dest_surface) {
-  DCHECK(!available());
-
-  GLint current_texture = 0;
-  glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);
-
-  glBindTexture(GL_TEXTURE_2D, picture_buffer_.texture_ids()[0]);
-
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-
-  if (src_surface && dest_surface) {
-    DCHECK_EQ(src_surface, decoder_surface_.get());
-    DCHECK_EQ(dest_surface, target_surface_.get());
-    decoder_surface_.Release();
-    target_surface_.Release();
-  } else {
-    DCHECK(decoder_dx11_texture_.get());
-    decoder_dx11_texture_.Release();
-  }
-  if (egl_keyed_mutex_) {
-    keyed_mutex_value_++;
-    HRESULT result =
-        egl_keyed_mutex_->AcquireSync(keyed_mutex_value_, kAcquireSyncWaitMs);
-    RETURN_ON_FAILURE(result == S_OK, "Could not acquire sync mutex", false);
-  }
-
-  EGLDisplay egl_display = gfx::GLSurfaceEGL::GetHardwareDisplay();
-  eglBindTexImage(
-      egl_display,
-      decoding_surface_,
-      EGL_BACK_BUFFER);
-
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-  glBindTexture(GL_TEXTURE_2D, current_texture);
-  return true;
-}
-
-DXVAVideoDecodeAccelerator::PendingSampleInfo::PendingSampleInfo(
-    int32_t buffer_id,
-    IMFSample* sample)
-    : input_buffer_id(buffer_id), picture_buffer_id(-1) {
-  output_sample.Attach(sample);
-}
-
-DXVAVideoDecodeAccelerator::PendingSampleInfo::PendingSampleInfo(
-    const PendingSampleInfo& other) = default;
-
-DXVAVideoDecodeAccelerator::PendingSampleInfo::~PendingSampleInfo() {}
-
-DXVAVideoDecodeAccelerator::DXVAVideoDecodeAccelerator(
-    const GetGLContextCallback& get_gl_context_cb,
-    const MakeGLContextCurrentCallback& make_context_current_cb,
-    bool enable_accelerated_vpx_decode)
-    : client_(NULL),
-      dev_manager_reset_token_(0),
-      dx11_dev_manager_reset_token_(0),
-      egl_config_(NULL),
-      state_(kUninitialized),
-      pictures_requested_(false),
-      inputs_before_decode_(0),
-      sent_drain_message_(false),
-      get_gl_context_cb_(get_gl_context_cb),
-      make_context_current_cb_(make_context_current_cb),
-      codec_(media::kUnknownVideoCodec),
-      decoder_thread_("DXVAVideoDecoderThread"),
-      pending_flush_(false),
-      use_dx11_(false),
-      use_keyed_mutex_(false),
-      dx11_video_format_converter_media_type_needs_init_(true),
-      using_angle_device_(false),
-      enable_accelerated_vpx_decode_(enable_accelerated_vpx_decode),
-      weak_this_factory_(this) {
-  weak_ptr_ = weak_this_factory_.GetWeakPtr();
-  memset(&input_stream_info_, 0, sizeof(input_stream_info_));
-  memset(&output_stream_info_, 0, sizeof(output_stream_info_));
-}
-
-DXVAVideoDecodeAccelerator::~DXVAVideoDecodeAccelerator() {
-  client_ = NULL;
-}
-
-bool DXVAVideoDecodeAccelerator::Initialize(const Config& config,
-                                            Client* client) {
-  if (get_gl_context_cb_.is_null() || make_context_current_cb_.is_null()) {
-    NOTREACHED() << "GL callbacks are required for this VDA";
-    return false;
-  }
-
-  if (config.is_encrypted) {
-    NOTREACHED() << "Encrypted streams are not supported for this VDA";
-    return false;
-  }
-
-  client_ = client;
-
-  main_thread_task_runner_ = base::MessageLoop::current()->task_runner();
-
-  bool profile_supported = false;
-  for (const auto& supported_profile : kSupportedProfiles) {
-    if (config.profile == supported_profile) {
-      profile_supported = true;
-      break;
-    }
-  }
-  if (!profile_supported) {
-    RETURN_AND_NOTIFY_ON_FAILURE(false,
-        "Unsupported h.264, vp8, or vp9 profile", PLATFORM_FAILURE, false);
-  }
-
-  // Not all versions of Windows 7 and later include Media Foundation DLLs.
-  // Instead of crashing while delay loading the DLL when calling MFStartup()
-  // below, probe whether we can successfully load the DLL now.
-  // See http://crbug.com/339678 for details.
-  HMODULE dxgi_manager_dll = ::GetModuleHandle(L"MFPlat.dll");
-  RETURN_ON_FAILURE(dxgi_manager_dll, "MFPlat.dll is required for decoding",
-                    false);
-
-  // On Windows 8+ mfplat.dll provides the MFCreateDXGIDeviceManager API.
-  // On Windows 7 mshtmlmedia.dll provides it.
-
-  // TODO(ananta)
-  // The code below works, as in we can create the DX11 device manager for
-  // Windows 7. However the IMFTransform we use for texture conversion and
-  // copy does not exist on Windows 7. Look into an alternate approach
-  // and enable the code below.
-#if defined(ENABLE_DX11_FOR_WIN7)
-  if (base::win::GetVersion() == base::win::VERSION_WIN7) {
-    dxgi_manager_dll = ::GetModuleHandle(L"mshtmlmedia.dll");
-    RETURN_ON_FAILURE(dxgi_manager_dll,
-        "mshtmlmedia.dll is required for decoding", false);
-  }
-#endif
-  // If we don't find the MFCreateDXGIDeviceManager API we fallback to D3D9
-  // decoding.
-  if (dxgi_manager_dll && !create_dxgi_device_manager_) {
-    create_dxgi_device_manager_ = reinterpret_cast<CreateDXGIDeviceManager>(
-            ::GetProcAddress(dxgi_manager_dll, "MFCreateDXGIDeviceManager"));
-  }
-
-  RETURN_AND_NOTIFY_ON_FAILURE(
-      gfx::g_driver_egl.ext.b_EGL_ANGLE_surface_d3d_texture_2d_share_handle,
-      "EGL_ANGLE_surface_d3d_texture_2d_share_handle unavailable",
-      PLATFORM_FAILURE,
-      false);
-
-  RETURN_AND_NOTIFY_ON_FAILURE(gfx::GLFence::IsSupported(),
-                               "GL fences are unsupported", PLATFORM_FAILURE,
-                               false);
-
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state == kUninitialized),
-      "Initialize: invalid state: " << state, ILLEGAL_STATE, false);
-
-  media::InitializeMediaFoundation();
-
-  RETURN_AND_NOTIFY_ON_FAILURE(InitDecoder(config.profile),
-      "Failed to initialize decoder", PLATFORM_FAILURE, false);
-
-  RETURN_AND_NOTIFY_ON_FAILURE(GetStreamsInfoAndBufferReqs(),
-      "Failed to get input/output stream info.", PLATFORM_FAILURE, false);
-
-  RETURN_AND_NOTIFY_ON_FAILURE(
-      SendMFTMessage(MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, 0),
-      "Send MFT_MESSAGE_NOTIFY_BEGIN_STREAMING notification failed",
-      PLATFORM_FAILURE, false);
-
-  RETURN_AND_NOTIFY_ON_FAILURE(
-      SendMFTMessage(MFT_MESSAGE_NOTIFY_START_OF_STREAM, 0),
-      "Send MFT_MESSAGE_NOTIFY_START_OF_STREAM notification failed",
-      PLATFORM_FAILURE, false);
-
-  config_ = config;
-
-  config_change_detector_.reset(new H264ConfigChangeDetector);
-
-  SetState(kNormal);
-
-  StartDecoderThread();
-  return true;
-}
-
-bool DXVAVideoDecodeAccelerator::CreateD3DDevManager() {
-  TRACE_EVENT0("gpu", "DXVAVideoDecodeAccelerator_CreateD3DDevManager");
-
-  HRESULT hr = E_FAIL;
-
-  hr = Direct3DCreate9Ex(D3D_SDK_VERSION, d3d9_.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Direct3DCreate9Ex failed", false);
-
-  base::win::ScopedComPtr<IDirect3DDevice9> angle_device =
-      QueryDeviceObjectFromANGLE<IDirect3DDevice9>(EGL_D3D9_DEVICE_ANGLE);
-  if (angle_device.get())
-    using_angle_device_ = true;
-
-  if (using_angle_device_) {
-    hr = d3d9_device_ex_.QueryFrom(angle_device.get());
-    RETURN_ON_HR_FAILURE(hr,
-        "QueryInterface for IDirect3DDevice9Ex from angle device failed",
-        false);
-  } else {
-    D3DPRESENT_PARAMETERS present_params = {0};
-    present_params.BackBufferWidth = 1;
-    present_params.BackBufferHeight = 1;
-    present_params.BackBufferFormat = D3DFMT_UNKNOWN;
-    present_params.BackBufferCount = 1;
-    present_params.SwapEffect = D3DSWAPEFFECT_DISCARD;
-    present_params.hDeviceWindow = NULL;
-    present_params.Windowed = TRUE;
-    present_params.Flags = D3DPRESENTFLAG_VIDEO;
-    present_params.FullScreen_RefreshRateInHz = 0;
-    present_params.PresentationInterval = 0;
-
-    hr = d3d9_->CreateDeviceEx(D3DADAPTER_DEFAULT,
-                               D3DDEVTYPE_HAL,
-                               NULL,
-                               D3DCREATE_FPU_PRESERVE |
-                               D3DCREATE_HARDWARE_VERTEXPROCESSING |
-                               D3DCREATE_DISABLE_PSGP_THREADING |
-                               D3DCREATE_MULTITHREADED,
-                               &present_params,
-                               NULL,
-                               d3d9_device_ex_.Receive());
-    RETURN_ON_HR_FAILURE(hr, "Failed to create D3D device", false);
-  }
-
-  hr = DXVA2CreateDirect3DDeviceManager9(&dev_manager_reset_token_,
-                                         device_manager_.Receive());
-  RETURN_ON_HR_FAILURE(hr, "DXVA2CreateDirect3DDeviceManager9 failed", false);
-
-  hr = device_manager_->ResetDevice(d3d9_device_ex_.get(),
-                                    dev_manager_reset_token_);
-  RETURN_ON_HR_FAILURE(hr, "Failed to reset device", false);
-
-  hr = d3d9_device_ex_->CreateQuery(D3DQUERYTYPE_EVENT, query_.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to create D3D device query", false);
-  // Ensure query_ API works (to avoid an infinite loop later in
-  // CopyOutputSampleDataToPictureBuffer).
-  hr = query_->Issue(D3DISSUE_END);
-  RETURN_ON_HR_FAILURE(hr, "Failed to issue END test query", false);
-  return true;
-}
-
-bool DXVAVideoDecodeAccelerator::CreateDX11DevManager() {
-  HRESULT hr = create_dxgi_device_manager_(&dx11_dev_manager_reset_token_,
-                                           d3d11_device_manager_.Receive());
-  RETURN_ON_HR_FAILURE(hr, "MFCreateDXGIDeviceManager failed", false);
-
-  // This array defines the set of DirectX hardware feature levels we support.
-  // The ordering MUST be preserved. All applications are assumed to support
-  // 9.1 unless otherwise stated by the application.
-  D3D_FEATURE_LEVEL feature_levels[] = {
-    D3D_FEATURE_LEVEL_11_1,
-    D3D_FEATURE_LEVEL_11_0,
-    D3D_FEATURE_LEVEL_10_1,
-    D3D_FEATURE_LEVEL_10_0,
-    D3D_FEATURE_LEVEL_9_3,
-    D3D_FEATURE_LEVEL_9_2,
-    D3D_FEATURE_LEVEL_9_1
-  };
-
-  UINT flags = D3D11_CREATE_DEVICE_VIDEO_SUPPORT;
-
-#if defined _DEBUG
-  flags |= D3D11_CREATE_DEVICE_DEBUG;
-#endif
-
-  D3D_FEATURE_LEVEL feature_level_out = D3D_FEATURE_LEVEL_11_0;
-  hr = D3D11CreateDevice(NULL,
-                         D3D_DRIVER_TYPE_HARDWARE,
-                         NULL,
-                         flags,
-                         feature_levels,
-                         arraysize(feature_levels),
-                         D3D11_SDK_VERSION,
-                         d3d11_device_.Receive(),
-                         &feature_level_out,
-                         d3d11_device_context_.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to create DX11 device", false);
-
-  // Enable multithreaded mode on the device. This ensures that accesses to
-  // context are synchronized across threads. We have multiple threads
-  // accessing the context, the media foundation decoder threads and the
-  // decoder thread via the video format conversion transform.
-  hr = multi_threaded_.QueryFrom(d3d11_device_.get());
-  RETURN_ON_HR_FAILURE(hr, "Failed to query ID3D10Multithread", false);
-  multi_threaded_->SetMultithreadProtected(TRUE);
-
-  hr = d3d11_device_manager_->ResetDevice(d3d11_device_.get(),
-                                          dx11_dev_manager_reset_token_);
-  RETURN_ON_HR_FAILURE(hr, "Failed to reset device", false);
-
-  D3D11_QUERY_DESC query_desc;
-  query_desc.Query = D3D11_QUERY_EVENT;
-  query_desc.MiscFlags = 0;
-  hr = d3d11_device_->CreateQuery(
-      &query_desc,
-      d3d11_query_.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to create DX11 device query", false);
-
-  HMODULE video_processor_dll = ::GetModuleHandle(L"msvproc.dll");
-  RETURN_ON_FAILURE(video_processor_dll, "Failed to load video processor",
-                    false);
-
-  hr = CreateCOMObjectFromDll(
-      video_processor_dll,
-      CLSID_VideoProcessorMFT,
-      __uuidof(IMFTransform),
-      video_format_converter_mft_.ReceiveVoid());
-  if (FAILED(hr)) {
-    base::debug::Alias(&hr);
-    // TODO(ananta)
-    // Remove this CHECK when the change to use DX11 for H/W decoding
-    // stablizes.
-    CHECK(false);
-  }
-
-  RETURN_ON_HR_FAILURE(hr, "Failed to create video format converter", false);
-
-  base::win::ScopedComPtr<IMFAttributes> converter_attributes;
-  hr = video_format_converter_mft_->GetAttributes(
-      converter_attributes.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to get converter attributes", false);
-
-  hr = converter_attributes->SetUINT32(MF_XVP_PLAYBACK_MODE, TRUE);
-  RETURN_ON_HR_FAILURE(
-      hr,
-      "Failed to set MF_XVP_PLAYBACK_MODE attribute on converter",
-      false);
-
-  hr = converter_attributes->SetUINT32(MF_LOW_LATENCY, FALSE);
-  RETURN_ON_HR_FAILURE(
-      hr,
-      "Failed to set MF_LOW_LATENCY attribute on converter",
-      false);
-  return true;
-}
-
-void DXVAVideoDecodeAccelerator::Decode(
-    const media::BitstreamBuffer& bitstream_buffer) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  // SharedMemory will take over the ownership of handle.
-  base::SharedMemory shm(bitstream_buffer.handle(), true);
-
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state == kNormal || state == kStopped ||
-                                state == kFlushing),
-           "Invalid state: " << state, ILLEGAL_STATE,);
-  if (bitstream_buffer.id() < 0) {
-    RETURN_AND_NOTIFY_ON_FAILURE(
-        false, "Invalid bitstream_buffer, id: " << bitstream_buffer.id(),
-        INVALID_ARGUMENT, );
-  }
-
-  base::win::ScopedComPtr<IMFSample> sample;
-  RETURN_AND_NOTIFY_ON_FAILURE(shm.Map(bitstream_buffer.size()),
-                               "Failed in base::SharedMemory::Map",
-                               PLATFORM_FAILURE, );
-
-  sample.Attach(CreateInputSample(
-      reinterpret_cast<const uint8_t*>(shm.memory()), bitstream_buffer.size(),
-      std::min<uint32_t>(bitstream_buffer.size(), input_stream_info_.cbSize),
-      input_stream_info_.cbAlignment));
-  RETURN_AND_NOTIFY_ON_FAILURE(sample.get(), "Failed to create input sample",
-                               PLATFORM_FAILURE, );
-
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(sample->SetSampleTime(bitstream_buffer.id()),
-      "Failed to associate input buffer id with sample", PLATFORM_FAILURE,);
-
-  decoder_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::DecodeInternal,
-                 base::Unretained(this), sample));
-}
-
-void DXVAVideoDecodeAccelerator::AssignPictureBuffers(
-    const std::vector<media::PictureBuffer>& buffers) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state != kUninitialized),
-      "Invalid state: " << state, ILLEGAL_STATE,);
-  RETURN_AND_NOTIFY_ON_FAILURE((kNumPictureBuffers >= buffers.size()),
-      "Failed to provide requested picture buffers. (Got " << buffers.size() <<
-      ", requested " << kNumPictureBuffers << ")", INVALID_ARGUMENT,);
-
-  // Copy the picture buffers provided by the client to the available list,
-  // and mark these buffers as available for use.
-  for (size_t buffer_index = 0; buffer_index < buffers.size();
-       ++buffer_index) {
-    DCHECK_LE(1u, buffers[buffer_index].texture_ids().size());
-    linked_ptr<DXVAPictureBuffer> picture_buffer =
-        DXVAPictureBuffer::Create(*this, buffers[buffer_index], egl_config_);
-    RETURN_AND_NOTIFY_ON_FAILURE(picture_buffer.get(),
-        "Failed to allocate picture buffer", PLATFORM_FAILURE,);
-
-    bool inserted = output_picture_buffers_.insert(std::make_pair(
-        buffers[buffer_index].id(), picture_buffer)).second;
-    DCHECK(inserted);
-  }
-
-  ProcessPendingSamples();
-  if (pending_flush_) {
-    decoder_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::FlushInternal,
-                   base::Unretained(this)));
-  }
-}
-
-void DXVAVideoDecodeAccelerator::ReusePictureBuffer(int32_t picture_buffer_id) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state != kUninitialized),
-      "Invalid state: " << state, ILLEGAL_STATE,);
-
-  if (output_picture_buffers_.empty() && stale_output_picture_buffers_.empty())
-    return;
-
-  OutputBuffers::iterator it = output_picture_buffers_.find(picture_buffer_id);
-  // If we didn't find the picture id in the |output_picture_buffers_| map we
-  // try the |stale_output_picture_buffers_| map, as this may have been an
-  // output picture buffer from before a resolution change, that at resolution
-  // change time had yet to be displayed. The client is calling us back to tell
-  // us that we can now recycle this picture buffer, so if we were waiting to
-  // dispose of it we now can.
-  if (it == output_picture_buffers_.end()) {
-    if (!stale_output_picture_buffers_.empty()) {
-      it = stale_output_picture_buffers_.find(picture_buffer_id);
-      RETURN_AND_NOTIFY_ON_FAILURE(it != stale_output_picture_buffers_.end(),
-          "Invalid picture id: " << picture_buffer_id, INVALID_ARGUMENT,);
-      main_thread_task_runner_->PostTask(
-          FROM_HERE,
-          base::Bind(&DXVAVideoDecodeAccelerator::DeferredDismissStaleBuffer,
-                     weak_this_factory_.GetWeakPtr(), picture_buffer_id));
-    }
-    return;
-  }
-
-  if (it->second->available() || it->second->waiting_to_reuse())
-    return;
-
-  if (use_keyed_mutex_ || using_angle_device_) {
-    RETURN_AND_NOTIFY_ON_FAILURE(it->second->ReusePictureBuffer(),
-                                 "Failed to reuse picture buffer",
-                                 PLATFORM_FAILURE, );
-
-    ProcessPendingSamples();
-    if (pending_flush_) {
-      decoder_thread_task_runner_->PostTask(
-          FROM_HERE, base::Bind(&DXVAVideoDecodeAccelerator::FlushInternal,
-                                base::Unretained(this)));
-    }
-  } else {
-    RETURN_AND_NOTIFY_ON_FAILURE(make_context_current_cb_.Run(),
-                                 "Failed to make context current",
-                                 PLATFORM_FAILURE, );
-    it->second->ResetReuseFence();
-
-    WaitForOutputBuffer(picture_buffer_id, 0);
-  }
-}
-
-void DXVAVideoDecodeAccelerator::WaitForOutputBuffer(int32_t picture_buffer_id,
-                                                     int count) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  OutputBuffers::iterator it = output_picture_buffers_.find(picture_buffer_id);
-  if (it == output_picture_buffers_.end())
-    return;
-
-  DXVAPictureBuffer* picture_buffer = it->second.get();
-
-  DCHECK(!picture_buffer->available());
-  DCHECK(picture_buffer->waiting_to_reuse());
-
-  gfx::GLFence* fence = picture_buffer->reuse_fence();
-  RETURN_AND_NOTIFY_ON_FAILURE(make_context_current_cb_.Run(),
-                               "Failed to make context current",
-                               PLATFORM_FAILURE, );
-  if (count <= kMaxIterationsForANGLEReuseFlush && !fence->HasCompleted()) {
-    main_thread_task_runner_->PostDelayedTask(
-        FROM_HERE, base::Bind(&DXVAVideoDecodeAccelerator::WaitForOutputBuffer,
-                              weak_this_factory_.GetWeakPtr(),
-                              picture_buffer_id, count + 1),
-        base::TimeDelta::FromMilliseconds(kFlushDecoderSurfaceTimeoutMs));
-    return;
-  }
-  RETURN_AND_NOTIFY_ON_FAILURE(picture_buffer->ReusePictureBuffer(),
-                               "Failed to reuse picture buffer",
-                               PLATFORM_FAILURE, );
-
-  ProcessPendingSamples();
-  if (pending_flush_) {
-    decoder_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::FlushInternal,
-                   base::Unretained(this)));
-  }
-}
-
-void DXVAVideoDecodeAccelerator::Flush() {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  DVLOG(1) << "DXVAVideoDecodeAccelerator::Flush";
-
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state == kNormal || state == kStopped),
-      "Unexpected decoder state: " << state, ILLEGAL_STATE,);
-
-  SetState(kFlushing);
-
-  pending_flush_ = true;
-
-  decoder_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::FlushInternal,
-                  base::Unretained(this)));
-}
-
-void DXVAVideoDecodeAccelerator::Reset() {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  DVLOG(1) << "DXVAVideoDecodeAccelerator::Reset";
-
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state == kNormal || state == kStopped),
-      "Reset: invalid state: " << state, ILLEGAL_STATE,);
-
-  decoder_thread_.Stop();
-
-  SetState(kResetting);
-
-  // If we have pending output frames waiting for display then we drop those
-  // frames and set the corresponding picture buffer as available.
-  PendingOutputSamples::iterator index;
-  for (index = pending_output_samples_.begin();
-       index != pending_output_samples_.end();
-       ++index) {
-    if (index->picture_buffer_id != -1) {
-      OutputBuffers::iterator it = output_picture_buffers_.find(
-          index->picture_buffer_id);
-      if (it != output_picture_buffers_.end()) {
-        DXVAPictureBuffer* picture_buffer = it->second.get();
-        picture_buffer->ReusePictureBuffer();
-      }
-    }
-  }
-
-  pending_output_samples_.clear();
-
-  NotifyInputBuffersDropped();
-
-  RETURN_AND_NOTIFY_ON_FAILURE(SendMFTMessage(MFT_MESSAGE_COMMAND_FLUSH, 0),
-      "Reset: Failed to send message.", PLATFORM_FAILURE,);
-
-  main_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::NotifyResetDone,
-                 weak_this_factory_.GetWeakPtr()));
-
-  StartDecoderThread();
-  SetState(kNormal);
-}
-
-void DXVAVideoDecodeAccelerator::Destroy() {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  Invalidate();
-  delete this;
-}
-
-bool DXVAVideoDecodeAccelerator::TryToSetupDecodeOnSeparateThread(
-    const base::WeakPtr<Client>& decode_client,
-    const scoped_refptr<base::SingleThreadTaskRunner>& decode_task_runner) {
-  return false;
-}
-
-GLenum DXVAVideoDecodeAccelerator::GetSurfaceInternalFormat() const {
-  return GL_BGRA_EXT;
-}
-
-// static
-media::VideoDecodeAccelerator::SupportedProfiles
-DXVAVideoDecodeAccelerator::GetSupportedProfiles() {
-  TRACE_EVENT0("gpu,startup",
-    "DXVAVideoDecodeAccelerator::GetSupportedProfiles");
-
-  // TODO(henryhsu): Need to ensure the profiles are actually supported.
-  SupportedProfiles profiles;
-  for (const auto& supported_profile : kSupportedProfiles) {
-    std::pair<int, int> min_resolution = GetMinResolution(supported_profile);
-    std::pair<int, int> max_resolution = GetMaxResolution(supported_profile);
-
-    SupportedProfile profile;
-    profile.profile = supported_profile;
-    profile.min_resolution.SetSize(min_resolution.first, min_resolution.second);
-    profile.max_resolution.SetSize(max_resolution.first, max_resolution.second);
-    profiles.push_back(profile);
-  }
-  return profiles;
-}
-
-// static
-void DXVAVideoDecodeAccelerator::PreSandboxInitialization() {
-  ::LoadLibrary(L"MFPlat.dll");
-  ::LoadLibrary(L"msmpeg2vdec.dll");
-  ::LoadLibrary(L"mf.dll");
-  ::LoadLibrary(L"dxva2.dll");
-
-  if (base::win::GetVersion() > base::win::VERSION_WIN7) {
-    LoadLibrary(L"msvproc.dll");
-  } else {
-#if defined(ENABLE_DX11_FOR_WIN7)
-    LoadLibrary(L"mshtmlmedia.dll");
-#endif
-  }
-}
-
-// static
-std::pair<int, int> DXVAVideoDecodeAccelerator::GetMinResolution(
-    media::VideoCodecProfile profile) {
-  TRACE_EVENT0("gpu,startup",
-    "DXVAVideoDecodeAccelerator::GetMinResolution");
-  std::pair<int, int> min_resolution;
-  if (profile >= media::H264PROFILE_BASELINE &&
-      profile <= media::H264PROFILE_HIGH) {
-    // Windows Media Foundation H.264 decoding does not support decoding videos
-    // with any dimension smaller than 48 pixels:
-    // http://msdn.microsoft.com/en-us/library/windows/desktop/dd797815
-    min_resolution = std::make_pair(48, 48);
-  } else {
-    // TODO(ananta)
-    // Detect this properly for VP8/VP9 profiles.
-    min_resolution = std::make_pair(16, 16);
-  }
-  return min_resolution;
-}
-
-// static
-std::pair<int, int> DXVAVideoDecodeAccelerator::GetMaxResolution(
-    const media::VideoCodecProfile profile) {
-  TRACE_EVENT0("gpu,startup",
-               "DXVAVideoDecodeAccelerator::GetMaxResolution");
-  std::pair<int, int> max_resolution;
-  if (profile >= media::H264PROFILE_BASELINE &&
-      profile <= media::H264PROFILE_HIGH) {
-    max_resolution = GetMaxH264Resolution();
-  } else {
-    // TODO(ananta)
-    // Detect this properly for VP8/VP9 profiles.
-    max_resolution = std::make_pair(4096, 2160);
-  }
-  return max_resolution;
-}
-
-std::pair<int, int> DXVAVideoDecodeAccelerator::GetMaxH264Resolution() {
-  TRACE_EVENT0("gpu,startup",
-               "DXVAVideoDecodeAccelerator::GetMaxH264Resolution");
-  // The H.264 resolution detection operation is expensive. This static flag
-  // allows us to run the detection once.
-  static bool resolution_detected = false;
-  // Use 1088 to account for 16x16 macroblocks.
-  static std::pair<int, int> max_resolution = std::make_pair(1920, 1088);
-  if (resolution_detected)
-    return max_resolution;
-
-  resolution_detected = true;
-
-  // On Windows 7 the maximum resolution supported by media foundation is
-  // 1920 x 1088.
-  if (base::win::GetVersion() == base::win::VERSION_WIN7)
-    return max_resolution;
-
-  // To detect if a driver supports the desired resolutions, we try and create
-  // a DXVA decoder instance for that resolution and profile. If that succeeds
-  // we assume that the driver supports H/W H.264 decoding for that resolution.
-  HRESULT hr = E_FAIL;
-  base::win::ScopedComPtr<ID3D11Device> device;
-
-  {
-    TRACE_EVENT0("gpu,startup",
-      "GetMaxH264Resolution. QueryDeviceObjectFromANGLE");
-
-    device = QueryDeviceObjectFromANGLE<ID3D11Device>(EGL_D3D11_DEVICE_ANGLE);
-    if (!device.get())
-      return max_resolution;
-  }
-
-  base::win::ScopedComPtr<ID3D11VideoDevice> video_device;
-  hr = device.QueryInterface(IID_ID3D11VideoDevice,
-                             video_device.ReceiveVoid());
-  if (FAILED(hr))
-    return max_resolution;
-
-  GUID decoder_guid = {};
-
-  {
-    TRACE_EVENT0("gpu,startup",
-                 "GetMaxH264Resolution. H.264 guid search begin");
-    // Enumerate supported video profiles and look for the H264 profile.
-    bool found = false;
-    UINT profile_count = video_device->GetVideoDecoderProfileCount();
-    for (UINT profile_idx = 0; profile_idx < profile_count; profile_idx++) {
-      GUID profile_id = {};
-      hr = video_device->GetVideoDecoderProfile(profile_idx, &profile_id);
-      if (SUCCEEDED(hr) &&
-          (profile_id == DXVA2_ModeH264_E ||
-          profile_id == DXVA2_Intel_ModeH264_E)) {
-        decoder_guid = profile_id;
-        found = true;
-        break;
-      }
-    }
-    if (!found)
-      return max_resolution;
-  }
-
-  // Legacy AMD drivers with UVD3 or earlier and some Intel GPU's crash while
-  // creating surfaces larger than 1920 x 1088.
-  if (IsLegacyGPU(device.get()))
-    return max_resolution;
-
-  // We look for the following resolutions in the driver.
-  // TODO(ananta)
-  // Look into whether this list needs to be expanded.
-  static std::pair<int, int> resolution_array[] = {
-    // Use 1088 to account for 16x16 macroblocks.
-    std::make_pair(1920, 1088),
-    std::make_pair(2560, 1440),
-    std::make_pair(3840, 2160),
-    std::make_pair(4096, 2160),
-    std::make_pair(4096, 2304),
-  };
-
-  {
-    TRACE_EVENT0("gpu,startup",
-                 "GetMaxH264Resolution. Resolution search begin");
-
-    for (size_t res_idx = 0; res_idx < arraysize(resolution_array);
-         res_idx++) {
-      D3D11_VIDEO_DECODER_DESC desc = {};
-      desc.Guid = decoder_guid;
-      desc.SampleWidth = resolution_array[res_idx].first;
-      desc.SampleHeight = resolution_array[res_idx].second;
-      desc.OutputFormat = DXGI_FORMAT_NV12;
-      UINT config_count = 0;
-      hr = video_device->GetVideoDecoderConfigCount(&desc, &config_count);
-      if (FAILED(hr) || config_count == 0)
-        return max_resolution;
-
-      D3D11_VIDEO_DECODER_CONFIG config = {};
-      hr = video_device->GetVideoDecoderConfig(&desc, 0, &config);
-      if (FAILED(hr))
-        return max_resolution;
-
-      base::win::ScopedComPtr<ID3D11VideoDecoder> video_decoder;
-      hr = video_device->CreateVideoDecoder(&desc, &config,
-          video_decoder.Receive());
-      if (!video_decoder.get())
-        return max_resolution;
-
-      max_resolution = resolution_array[res_idx];
-    }
-  }
-  return max_resolution;
-}
-
-// static
-bool DXVAVideoDecodeAccelerator::IsLegacyGPU(ID3D11Device* device) {
-  static const int kAMDGPUId1 = 0x1002;
-  static const int kAMDGPUId2 = 0x1022;
-  static const int kIntelGPU = 0x8086;
-
-  static bool legacy_gpu = true;
-  // This flag ensures that we determine the GPU type once.
-  static bool legacy_gpu_determined = false;
-
-  if (legacy_gpu_determined)
-    return legacy_gpu;
-
-  legacy_gpu_determined = true;
-
-  base::win::ScopedComPtr<IDXGIDevice> dxgi_device;
-  HRESULT hr = dxgi_device.QueryFrom(device);
-  if (FAILED(hr))
-    return legacy_gpu;
-
-  base::win::ScopedComPtr<IDXGIAdapter> adapter;
-  hr = dxgi_device->GetAdapter(adapter.Receive());
-  if (FAILED(hr))
-    return legacy_gpu;
-
-  DXGI_ADAPTER_DESC adapter_desc = {};
-  hr = adapter->GetDesc(&adapter_desc);
-  if (FAILED(hr))
-    return legacy_gpu;
-
-  // We check if the device is an Intel or an AMD device and whether it is in
-  // the global list defined by the g_AMDUVD3GPUList and g_IntelLegacyGPUList
-  // arrays above. If yes then the device is treated as a legacy device.
-  if ((adapter_desc.VendorId == kAMDGPUId1) ||
-       adapter_desc.VendorId == kAMDGPUId2) {
-    {
-      TRACE_EVENT0("gpu,startup",
-                   "DXVAVideoDecodeAccelerator::IsLegacyGPU. AMD check");
-      for (size_t i = 0; i < arraysize(g_AMDUVD3GPUList); i++) {
-        if (adapter_desc.DeviceId == g_AMDUVD3GPUList[i])
-          return legacy_gpu;
-      }
-    }
-  } else if (adapter_desc.VendorId == kIntelGPU) {
-    {
-      TRACE_EVENT0("gpu,startup",
-        "DXVAVideoDecodeAccelerator::IsLegacyGPU. Intel check");
-      for (size_t i = 0; i < arraysize(g_IntelLegacyGPUList); i++) {
-        if (adapter_desc.DeviceId == g_IntelLegacyGPUList[i])
-          return legacy_gpu;
-      }
-    }
-  }
-  legacy_gpu = false;
-  return legacy_gpu;
-}
-
-bool DXVAVideoDecodeAccelerator::InitDecoder(media::VideoCodecProfile profile) {
-  HMODULE decoder_dll = NULL;
-
-  CLSID clsid = {};
-
-  // Profile must fall within the valid range for one of the supported codecs.
-  if (profile >= media::H264PROFILE_MIN && profile <= media::H264PROFILE_MAX) {
-    // We mimic the steps CoCreateInstance uses to instantiate the object. This
-    // was previously done because it failed inside the sandbox, and now is done
-    // as a more minimal approach to avoid other side-effects CCI might have (as
-    // we are still in a reduced sandbox).
-    decoder_dll = ::GetModuleHandle(L"msmpeg2vdec.dll");
-    RETURN_ON_FAILURE(decoder_dll,
-                      "msmpeg2vdec.dll required for decoding is not loaded",
-                      false);
-
-    // Check version of DLL, version 6.1.7140 is blacklisted due to high crash
-    // rates in browsers loading that DLL. If that is the version installed we
-    // fall back to software decoding. See crbug/403440.
-    std::unique_ptr<FileVersionInfo> version_info(
-        FileVersionInfo::CreateFileVersionInfoForModule(decoder_dll));
-    RETURN_ON_FAILURE(version_info,
-                      "unable to get version of msmpeg2vdec.dll",
-                      false);
-    base::string16 file_version = version_info->file_version();
-    RETURN_ON_FAILURE(file_version.find(L"6.1.7140") == base::string16::npos,
-                      "blacklisted version of msmpeg2vdec.dll 6.1.7140",
-                      false);
-    codec_ = media::kCodecH264;
-    clsid = __uuidof(CMSH264DecoderMFT);
-  } else if (enable_accelerated_vpx_decode_ &&
-             (profile == media::VP8PROFILE_ANY ||
-              profile == media::VP9PROFILE_PROFILE0 ||
-              profile == media::VP9PROFILE_PROFILE1 ||
-              profile == media::VP9PROFILE_PROFILE2 ||
-              profile == media::VP9PROFILE_PROFILE3)) {
-    int program_files_key = base::DIR_PROGRAM_FILES;
-    if (base::win::OSInfo::GetInstance()->wow64_status() ==
-        base::win::OSInfo::WOW64_ENABLED) {
-      program_files_key = base::DIR_PROGRAM_FILES6432;
-    }
-
-    base::FilePath dll_path;
-    RETURN_ON_FAILURE(PathService::Get(program_files_key, &dll_path),
-        "failed to get path for Program Files", false);
-
-    dll_path = dll_path.Append(kVPXDecoderDLLPath);
-    if (profile == media::VP8PROFILE_ANY) {
-      codec_ = media::kCodecVP8;
-      dll_path = dll_path.Append(kVP8DecoderDLLName);
-      clsid = CLSID_WebmMfVp8Dec;
-    } else {
-      codec_ = media::kCodecVP9;
-      dll_path = dll_path.Append(kVP9DecoderDLLName);
-      clsid = CLSID_WebmMfVp9Dec;
-    }
-    decoder_dll = ::LoadLibraryEx(dll_path.value().data(), NULL,
-        LOAD_WITH_ALTERED_SEARCH_PATH);
-    RETURN_ON_FAILURE(decoder_dll, "vpx decoder dll is not loaded", false);
-  } else {
-    RETURN_ON_FAILURE(false, "Unsupported codec.", false);
-  }
-
-  HRESULT hr = CreateCOMObjectFromDll(decoder_dll,
-                                      clsid,
-                                      __uuidof(IMFTransform),
-                                      decoder_.ReceiveVoid());
-  RETURN_ON_HR_FAILURE(hr, "Failed to create decoder instance", false);
-
-  RETURN_ON_FAILURE(CheckDecoderDxvaSupport(),
-                    "Failed to check decoder DXVA support", false);
-
-  ULONG_PTR device_manager_to_use = NULL;
-  if (use_dx11_) {
-    CHECK(create_dxgi_device_manager_);
-    RETURN_AND_NOTIFY_ON_FAILURE(CreateDX11DevManager(),
-                                 "Failed to initialize DX11 device and manager",
-                                 PLATFORM_FAILURE,
-                                 false);
-    device_manager_to_use = reinterpret_cast<ULONG_PTR>(
-        d3d11_device_manager_.get());
-  } else {
-    RETURN_AND_NOTIFY_ON_FAILURE(CreateD3DDevManager(),
-                                 "Failed to initialize D3D device and manager",
-                                 PLATFORM_FAILURE,
-                                 false);
-    device_manager_to_use = reinterpret_cast<ULONG_PTR>(device_manager_.get());
-  }
-
-  hr = decoder_->ProcessMessage(
-            MFT_MESSAGE_SET_D3D_MANAGER,
-            device_manager_to_use);
-  if (use_dx11_) {
-    RETURN_ON_HR_FAILURE(hr, "Failed to pass DX11 manager to decoder", false);
-  } else {
-    RETURN_ON_HR_FAILURE(hr, "Failed to pass D3D manager to decoder", false);
-  }
-
-  EGLDisplay egl_display = gfx::GLSurfaceEGL::GetHardwareDisplay();
-
-  EGLint config_attribs[] = {
-    EGL_BUFFER_SIZE, 32,
-    EGL_RED_SIZE, 8,
-    EGL_GREEN_SIZE, 8,
-    EGL_BLUE_SIZE, 8,
-    EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
-    EGL_ALPHA_SIZE, 0,
-    EGL_NONE
-  };
-
-  EGLint num_configs;
-
-  if (!eglChooseConfig(
-      egl_display,
-      config_attribs,
-      &egl_config_,
-      1,
-      &num_configs))
-    return false;
-
-  return SetDecoderMediaTypes();
-}
-
-bool DXVAVideoDecodeAccelerator::CheckDecoderDxvaSupport() {
-  base::win::ScopedComPtr<IMFAttributes> attributes;
-  HRESULT hr = decoder_->GetAttributes(attributes.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to get decoder attributes", false);
-
-  UINT32 dxva = 0;
-  hr = attributes->GetUINT32(MF_SA_D3D_AWARE, &dxva);
-  RETURN_ON_HR_FAILURE(hr, "Failed to check if decoder supports DXVA", false);
-
-  if (codec_ == media::kCodecH264) {
-    hr = attributes->SetUINT32(CODECAPI_AVDecVideoAcceleration_H264, TRUE);
-    RETURN_ON_HR_FAILURE(hr, "Failed to enable DXVA H/W decoding", false);
-  }
-
-  hr = attributes->SetUINT32(CODECAPI_AVLowLatencyMode, TRUE);
-  if (SUCCEEDED(hr)) {
-    DVLOG(1) << "Successfully set Low latency mode on decoder.";
-  } else {
-    DVLOG(1) << "Failed to set Low latency mode on decoder. Error: " << hr;
-  }
-
-  auto gl_context = get_gl_context_cb_.Run();
-  RETURN_ON_FAILURE(gl_context, "Couldn't get GL context", false);
-
-  // The decoder should use DX11 iff
-  // 1. The underlying H/W decoder supports it.
-  // 2. We have a pointer to the MFCreateDXGIDeviceManager function needed for
-  //    this. This should always be true for Windows 8+.
-  // 3. ANGLE is using DX11.
-  if (create_dxgi_device_manager_ &&
-      (gl_context->GetGLRenderer().find("Direct3D11") != std::string::npos)) {
-    UINT32 dx11_aware = 0;
-    attributes->GetUINT32(MF_SA_D3D11_AWARE, &dx11_aware);
-    use_dx11_ = !!dx11_aware;
-  }
-
-  use_keyed_mutex_ =
-      use_dx11_ && gfx::GLSurfaceEGL::HasEGLExtension("EGL_ANGLE_keyed_mutex");
-
-  return true;
-}
-
-bool DXVAVideoDecodeAccelerator::SetDecoderMediaTypes() {
-  RETURN_ON_FAILURE(SetDecoderInputMediaType(),
-                    "Failed to set decoder input media type", false);
-  return SetDecoderOutputMediaType(MFVideoFormat_NV12);
-}
-
-bool DXVAVideoDecodeAccelerator::SetDecoderInputMediaType() {
-  base::win::ScopedComPtr<IMFMediaType> media_type;
-  HRESULT hr = MFCreateMediaType(media_type.Receive());
-  RETURN_ON_HR_FAILURE(hr, "MFCreateMediaType failed", false);
-
-  hr = media_type->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Video);
-  RETURN_ON_HR_FAILURE(hr, "Failed to set major input type", false);
-
-  if (codec_ == media::kCodecH264) {
-    hr = media_type->SetGUID(MF_MT_SUBTYPE, MFVideoFormat_H264);
-  } else if (codec_ == media::kCodecVP8) {
-    hr = media_type->SetGUID(MF_MT_SUBTYPE, MEDIASUBTYPE_VP80);
-  } else if (codec_ == media::kCodecVP9) {
-    hr = media_type->SetGUID(MF_MT_SUBTYPE, MEDIASUBTYPE_VP90);
-  } else {
-    NOTREACHED();
-    RETURN_ON_FAILURE(false, "Unsupported codec on input media type.", false);
-  }
-  RETURN_ON_HR_FAILURE(hr, "Failed to set subtype", false);
-
-  // Not sure about this. msdn recommends setting this value on the input
-  // media type.
-  hr = media_type->SetUINT32(MF_MT_INTERLACE_MODE,
-                             MFVideoInterlace_MixedInterlaceOrProgressive);
-  RETURN_ON_HR_FAILURE(hr, "Failed to set interlace mode", false);
-
-  hr = decoder_->SetInputType(0, media_type.get(), 0);  // No flags
-  RETURN_ON_HR_FAILURE(hr, "Failed to set decoder input type", false);
-  return true;
-}
-
-bool DXVAVideoDecodeAccelerator::SetDecoderOutputMediaType(
-    const GUID& subtype) {
-  return SetTransformOutputType(decoder_.get(), subtype, 0, 0);
-}
-
-bool DXVAVideoDecodeAccelerator::SendMFTMessage(MFT_MESSAGE_TYPE msg,
-                                                int32_t param) {
-  HRESULT hr = decoder_->ProcessMessage(msg, param);
-  return SUCCEEDED(hr);
-}
-
-// Gets the minimum buffer sizes for input and output samples. The MFT will not
-// allocate buffer for input nor output, so we have to do it ourselves and make
-// sure they're the correct size. We only provide decoding if DXVA is enabled.
-bool DXVAVideoDecodeAccelerator::GetStreamsInfoAndBufferReqs() {
-  HRESULT hr = decoder_->GetInputStreamInfo(0, &input_stream_info_);
-  RETURN_ON_HR_FAILURE(hr, "Failed to get input stream info", false);
-
-  hr = decoder_->GetOutputStreamInfo(0, &output_stream_info_);
-  RETURN_ON_HR_FAILURE(hr, "Failed to get decoder output stream info", false);
-
-  DVLOG(1) << "Input stream info: ";
-  DVLOG(1) << "Max latency: " << input_stream_info_.hnsMaxLatency;
-  if (codec_ == media::kCodecH264) {
-    // There should be three flags, one for requiring a whole frame be in a
-    // single sample, one for requiring there be one buffer only in a single
-    // sample, and one that specifies a fixed sample size. (as in cbSize)
-    CHECK_EQ(input_stream_info_.dwFlags, 0x7u);
-  }
-
-  DVLOG(1) << "Min buffer size: " << input_stream_info_.cbSize;
-  DVLOG(1) << "Max lookahead: " << input_stream_info_.cbMaxLookahead;
-  DVLOG(1) << "Alignment: " << input_stream_info_.cbAlignment;
-
-  DVLOG(1) << "Output stream info: ";
-  // The flags here should be the same and mean the same thing, except when
-  // DXVA is enabled, there is an extra 0x100 flag meaning decoder will
-  // allocate its own sample.
-  DVLOG(1) << "Flags: "
-          << std::hex << std::showbase << output_stream_info_.dwFlags;
-  if (codec_ == media::kCodecH264) {
-    CHECK_EQ(output_stream_info_.dwFlags, 0x107u);
-  }
-  DVLOG(1) << "Min buffer size: " << output_stream_info_.cbSize;
-  DVLOG(1) << "Alignment: " << output_stream_info_.cbAlignment;
-  return true;
-}
-
-void DXVAVideoDecodeAccelerator::DoDecode() {
-  DCHECK(decoder_thread_task_runner_->BelongsToCurrentThread());
-  // This function is also called from FlushInternal in a loop which could
-  // result in the state transitioning to kStopped due to no decoded output.
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE(
-      (state == kNormal || state == kFlushing || state == kStopped),
-          "DoDecode: not in normal/flushing/stopped state", ILLEGAL_STATE,);
-
-  MFT_OUTPUT_DATA_BUFFER output_data_buffer = {0};
-  DWORD status = 0;
-
-  HRESULT hr = decoder_->ProcessOutput(0,  // No flags
-                                       1,  // # of out streams to pull from
-                                       &output_data_buffer,
-                                       &status);
-  IMFCollection* events = output_data_buffer.pEvents;
-  if (events != NULL) {
-    DVLOG(1) << "Got events from ProcessOuput, but discarding";
-    events->Release();
-  }
-  if (FAILED(hr)) {
-    // A stream change needs further ProcessInput calls to get back decoder
-    // output which is why we need to set the state to stopped.
-    if (hr == MF_E_TRANSFORM_STREAM_CHANGE) {
-      if (!SetDecoderOutputMediaType(MFVideoFormat_NV12)) {
-        // Decoder didn't let us set NV12 output format. Not sure as to why
-        // this can happen. Give up in disgust.
-        NOTREACHED() << "Failed to set decoder output media type to NV12";
-        SetState(kStopped);
-      } else {
-        DVLOG(1) << "Received output format change from the decoder."
-                    " Recursively invoking DoDecode";
-        DoDecode();
-      }
-      return;
-    } else if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
-      // No more output from the decoder. Stop playback.
-      SetState(kStopped);
-      return;
-    } else {
-      NOTREACHED() << "Unhandled error in DoDecode()";
-      return;
-    }
-  }
-  TRACE_EVENT_ASYNC_END0("gpu", "DXVAVideoDecodeAccelerator.Decoding", this);
-
-  TRACE_COUNTER1("DXVA Decoding", "TotalPacketsBeforeDecode",
-                 inputs_before_decode_);
-
-  inputs_before_decode_ = 0;
-
-  RETURN_AND_NOTIFY_ON_FAILURE(ProcessOutputSample(output_data_buffer.pSample),
-      "Failed to process output sample.", PLATFORM_FAILURE,);
-}
-
-bool DXVAVideoDecodeAccelerator::ProcessOutputSample(IMFSample* sample) {
-  RETURN_ON_FAILURE(sample, "Decode succeeded with NULL output sample", false);
-
-  LONGLONG input_buffer_id = 0;
-  RETURN_ON_HR_FAILURE(sample->GetSampleTime(&input_buffer_id),
-                       "Failed to get input buffer id associated with sample",
-                       false);
-
-  {
-    base::AutoLock lock(decoder_lock_);
-    DCHECK(pending_output_samples_.empty());
-    pending_output_samples_.push_back(
-        PendingSampleInfo(input_buffer_id, sample));
-  }
-
-  if (pictures_requested_) {
-    DVLOG(1) << "Waiting for picture slots from the client.";
-    main_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::ProcessPendingSamples,
-                   weak_this_factory_.GetWeakPtr()));
-    return true;
-  }
-
-  int width = 0;
-  int height = 0;
-  if (!GetVideoFrameDimensions(sample, &width, &height)) {
-    RETURN_ON_FAILURE(false, "Failed to get D3D surface from output sample",
-                      false);
-  }
-
-  // Go ahead and request picture buffers.
-  main_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::RequestPictureBuffers,
-                 weak_this_factory_.GetWeakPtr(),
-                 width,
-                 height));
-
-  pictures_requested_ = true;
-  return true;
-}
-
-void DXVAVideoDecodeAccelerator::ProcessPendingSamples() {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  if (!output_picture_buffers_.size())
-    return;
-
-  RETURN_AND_NOTIFY_ON_FAILURE(make_context_current_cb_.Run(),
-                               "Failed to make context current",
-                               PLATFORM_FAILURE, );
-
-  OutputBuffers::iterator index;
-
-  for (index = output_picture_buffers_.begin();
-       index != output_picture_buffers_.end() &&
-       OutputSamplesPresent();
-       ++index) {
-    if (index->second->available()) {
-      PendingSampleInfo* pending_sample = NULL;
-      {
-        base::AutoLock lock(decoder_lock_);
-        PendingSampleInfo& sample_info = pending_output_samples_.front();
-        if (sample_info.picture_buffer_id != -1)
-          continue;
-        pending_sample = &sample_info;
-      }
-
-      int width = 0;
-      int height = 0;
-      if (!GetVideoFrameDimensions(pending_sample->output_sample.get(),
-          &width, &height)) {
-        RETURN_AND_NOTIFY_ON_FAILURE(false,
-            "Failed to get D3D surface from output sample", PLATFORM_FAILURE,);
-      }
-
-      if (width != index->second->size().width() ||
-          height != index->second->size().height()) {
-        HandleResolutionChanged(width, height);
-        return;
-      }
-
-      base::win::ScopedComPtr<IMFMediaBuffer> output_buffer;
-      HRESULT hr = pending_sample->output_sample->GetBufferByIndex(
-          0, output_buffer.Receive());
-      RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-          "Failed to get buffer from output sample", PLATFORM_FAILURE,);
-
-      base::win::ScopedComPtr<IDirect3DSurface9> surface;
-      base::win::ScopedComPtr<ID3D11Texture2D> d3d11_texture;
-
-      if (use_dx11_) {
-        base::win::ScopedComPtr<IMFDXGIBuffer> dxgi_buffer;
-        hr = dxgi_buffer.QueryFrom(output_buffer.get());
-        RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-            "Failed to get DXGIBuffer from output sample", PLATFORM_FAILURE,);
-        hr = dxgi_buffer->GetResource(
-            __uuidof(ID3D11Texture2D),
-            reinterpret_cast<void**>(d3d11_texture.Receive()));
-      } else {
-        hr = MFGetService(output_buffer.get(), MR_BUFFER_SERVICE,
-                          IID_PPV_ARGS(surface.Receive()));
-      }
-      RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-          "Failed to get surface from output sample", PLATFORM_FAILURE,);
-
-      pending_sample->picture_buffer_id = index->second->id();
-
-      RETURN_AND_NOTIFY_ON_FAILURE(
-          index->second->CopyOutputSampleDataToPictureBuffer(
-              this,
-              surface.get(),
-              d3d11_texture.get(),
-              pending_sample->input_buffer_id),
-          "Failed to copy output sample", PLATFORM_FAILURE,);
-
-      index->second->set_available(false);
-    }
-  }
-}
-
-void DXVAVideoDecodeAccelerator::StopOnError(
-  media::VideoDecodeAccelerator::Error error) {
-  if (!main_thread_task_runner_->BelongsToCurrentThread()) {
-    main_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::StopOnError,
-                   weak_this_factory_.GetWeakPtr(),
-                   error));
-    return;
-  }
-
-  if (client_)
-    client_->NotifyError(error);
-  client_ = NULL;
-
-  if (GetState() != kUninitialized) {
-    Invalidate();
-  }
-}
-
-void DXVAVideoDecodeAccelerator::Invalidate() {
-  if (GetState() == kUninitialized)
-    return;
-
-  // Best effort to make the GL context current.
-  make_context_current_cb_.Run();
-
-  decoder_thread_.Stop();
-  weak_this_factory_.InvalidateWeakPtrs();
-  output_picture_buffers_.clear();
-  stale_output_picture_buffers_.clear();
-  pending_output_samples_.clear();
-  // We want to continue processing pending input after detecting a config
-  // change.
-  if (GetState() != kConfigChange)
-    pending_input_buffers_.clear();
-  decoder_.Release();
-  pictures_requested_ = false;
-
-  config_change_detector_.reset();
-
-  if (use_dx11_) {
-    if (video_format_converter_mft_.get()) {
-      video_format_converter_mft_->ProcessMessage(
-          MFT_MESSAGE_NOTIFY_END_STREAMING, 0);
-      video_format_converter_mft_.Release();
-    }
-    d3d11_device_context_.Release();
-    d3d11_device_.Release();
-    d3d11_device_manager_.Release();
-    d3d11_query_.Release();
-    dx11_video_format_converter_media_type_needs_init_ = true;
-    multi_threaded_.Release();
-  } else {
-    d3d9_.Release();
-    d3d9_device_ex_.Release();
-    device_manager_.Release();
-    query_.Release();
-  }
-
-  SetState(kUninitialized);
-}
-
-void DXVAVideoDecodeAccelerator::NotifyInputBufferRead(int input_buffer_id) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  if (client_)
-    client_->NotifyEndOfBitstreamBuffer(input_buffer_id);
-}
-
-void DXVAVideoDecodeAccelerator::NotifyFlushDone() {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  if (client_ && pending_flush_) {
-    pending_flush_ = false;
-    {
-      base::AutoLock lock(decoder_lock_);
-      sent_drain_message_ = false;
-    }
-
-    client_->NotifyFlushDone();
-  }
-}
-
-void DXVAVideoDecodeAccelerator::NotifyResetDone() {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  if (client_)
-    client_->NotifyResetDone();
-}
-
-void DXVAVideoDecodeAccelerator::RequestPictureBuffers(int width, int height) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  // This task could execute after the decoder has been torn down.
-  if (GetState() != kUninitialized && client_) {
-    client_->ProvidePictureBuffers(kNumPictureBuffers, 1,
-                                   gfx::Size(width, height), GL_TEXTURE_2D);
-  }
-}
-
-void DXVAVideoDecodeAccelerator::NotifyPictureReady(
-    int picture_buffer_id,
-    int input_buffer_id) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  // This task could execute after the decoder has been torn down.
-  if (GetState() != kUninitialized && client_) {
-    // TODO(henryhsu): Use correct visible size instead of (0, 0). We can't use
-    // coded size here so use (0, 0) intentionally to have the client choose.
-    media::Picture picture(picture_buffer_id, input_buffer_id,
-                           gfx::Rect(0, 0), false);
-    client_->PictureReady(picture);
-  }
-}
-
-void DXVAVideoDecodeAccelerator::NotifyInputBuffersDropped() {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-  if (!client_)
-    return;
-
-  for (PendingInputs::iterator it = pending_input_buffers_.begin();
-       it != pending_input_buffers_.end(); ++it) {
-    LONGLONG input_buffer_id = 0;
-    RETURN_ON_HR_FAILURE((*it)->GetSampleTime(&input_buffer_id),
-                         "Failed to get buffer id associated with sample",);
-    client_->NotifyEndOfBitstreamBuffer(input_buffer_id);
-  }
-  pending_input_buffers_.clear();
-}
-
-void DXVAVideoDecodeAccelerator::DecodePendingInputBuffers() {
-  DCHECK(decoder_thread_task_runner_->BelongsToCurrentThread());
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state != kUninitialized),
-      "Invalid state: " << state, ILLEGAL_STATE,);
-
-  if (pending_input_buffers_.empty() || OutputSamplesPresent())
-    return;
-
-  PendingInputs pending_input_buffers_copy;
-  std::swap(pending_input_buffers_, pending_input_buffers_copy);
-
-  for (PendingInputs::iterator it = pending_input_buffers_copy.begin();
-       it != pending_input_buffers_copy.end(); ++it) {
-    DecodeInternal(*it);
-  }
-}
-
-void DXVAVideoDecodeAccelerator::FlushInternal() {
-  DCHECK(decoder_thread_task_runner_->BelongsToCurrentThread());
-
-  // We allow only one output frame to be present at any given time. If we have
-  // an output frame, then we cannot complete the flush at this time.
-  if (OutputSamplesPresent())
-    return;
-
-  // First drain the pending input because once the drain message is sent below,
-  // the decoder will ignore further input until it's drained.
-  if (!pending_input_buffers_.empty()) {
-    decoder_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::DecodePendingInputBuffers,
-                    base::Unretained(this)));
-    decoder_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::FlushInternal,
-                    base::Unretained(this)));
-    return;
-  }
-
-  {
-    base::AutoLock lock(decoder_lock_);
-    if (!sent_drain_message_) {
-      RETURN_AND_NOTIFY_ON_FAILURE(SendMFTMessage(MFT_MESSAGE_COMMAND_DRAIN, 0),
-                                   "Failed to send drain message",
-                                   PLATFORM_FAILURE,);
-      sent_drain_message_ = true;
-    }
-  }
-
-  // Attempt to retrieve an output frame from the decoder. If we have one,
-  // return and proceed when the output frame is processed. If we don't have a
-  // frame then we are done.
-  DoDecode();
-  if (OutputSamplesPresent())
-    return;
-
-  SetState(kFlushing);
-
-  main_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::NotifyFlushDone,
-                 weak_this_factory_.GetWeakPtr()));
-
-  SetState(kNormal);
-}
-
-void DXVAVideoDecodeAccelerator::DecodeInternal(
-    const base::win::ScopedComPtr<IMFSample>& sample) {
-  DCHECK(decoder_thread_task_runner_->BelongsToCurrentThread());
-
-  if (GetState() == kUninitialized)
-    return;
-
-  if (OutputSamplesPresent() || !pending_input_buffers_.empty()) {
-    pending_input_buffers_.push_back(sample);
-    return;
-  }
-
-  // Check if the resolution, bit rate, etc changed in the stream. If yes we
-  // reinitialize the decoder to ensure that the stream decodes correctly.
-  bool config_changed = false;
-
-  HRESULT hr = CheckConfigChanged(sample.get(), &config_changed);
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "Failed to check video stream config",
-      PLATFORM_FAILURE,);
-
-  if (config_changed) {
-    pending_input_buffers_.push_back(sample);
-    main_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::ConfigChanged,
-                   weak_this_factory_.GetWeakPtr(),
-                   config_));
-    return;
-  }
-
-  if (!inputs_before_decode_) {
-    TRACE_EVENT_ASYNC_BEGIN0("gpu", "DXVAVideoDecodeAccelerator.Decoding",
-                             this);
-  }
-  inputs_before_decode_++;
-
-  hr = decoder_->ProcessInput(0, sample.get(), 0);
-  // As per msdn if the decoder returns MF_E_NOTACCEPTING then it means that it
-  // has enough data to produce one or more output samples. In this case the
-  // recommended options are to
-  // 1. Generate new output by calling IMFTransform::ProcessOutput until it
-  //    returns MF_E_TRANSFORM_NEED_MORE_INPUT.
-  // 2. Flush the input data
-  // We implement the first option, i.e to retrieve the output sample and then
-  // process the input again. Failure in either of these steps is treated as a
-  // decoder failure.
-  if (hr == MF_E_NOTACCEPTING) {
-    DoDecode();
-    // If the DoDecode call resulted in an output frame then we should not
-    // process any more input until that frame is copied to the target surface.
-    if (!OutputSamplesPresent()) {
-      State state = GetState();
-      RETURN_AND_NOTIFY_ON_FAILURE((state == kStopped || state == kNormal ||
-                                    state == kFlushing),
-          "Failed to process output. Unexpected decoder state: " << state,
-          PLATFORM_FAILURE,);
-      hr = decoder_->ProcessInput(0, sample.get(), 0);
-    }
-    // If we continue to get the MF_E_NOTACCEPTING error we do the following:-
-    // 1. Add the input sample to the pending queue.
-    // 2. If we don't have any output samples we post the
-    //    DecodePendingInputBuffers task to process the pending input samples.
-    //    If we have an output sample then the above task is posted when the
-    //    output samples are sent to the client.
-    // This is because we only support 1 pending output sample at any
-    // given time due to the limitation with the Microsoft media foundation
-    // decoder where it recycles the output Decoder surfaces.
-    if (hr == MF_E_NOTACCEPTING) {
-      pending_input_buffers_.push_back(sample);
-      decoder_thread_task_runner_->PostTask(
-          FROM_HERE,
-          base::Bind(&DXVAVideoDecodeAccelerator::DecodePendingInputBuffers,
-                      base::Unretained(this)));
-      return;
-    }
-  }
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "Failed to process input sample",
-      PLATFORM_FAILURE,);
-
-  DoDecode();
-
-  State state = GetState();
-  RETURN_AND_NOTIFY_ON_FAILURE((state == kStopped || state == kNormal ||
-                                state == kFlushing),
-      "Failed to process output. Unexpected decoder state: " << state,
-      ILLEGAL_STATE,);
-
-  LONGLONG input_buffer_id = 0;
-  RETURN_ON_HR_FAILURE(sample->GetSampleTime(&input_buffer_id),
-                       "Failed to get input buffer id associated with sample",);
-  // The Microsoft Media foundation decoder internally buffers up to 30 frames
-  // before returning a decoded frame. We need to inform the client that this
-  // input buffer is processed as it may stop sending us further input.
-  // Note: This may break clients which expect every input buffer to be
-  // associated with a decoded output buffer.
-  // TODO(ananta)
-  // Do some more investigation into whether it is possible to get the MFT
-  // decoder to emit an output packet for every input packet.
-  // http://code.google.com/p/chromium/issues/detail?id=108121
-  // http://code.google.com/p/chromium/issues/detail?id=150925
-  main_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::NotifyInputBufferRead,
-                 weak_this_factory_.GetWeakPtr(),
-                 input_buffer_id));
-}
-
-void DXVAVideoDecodeAccelerator::HandleResolutionChanged(int width,
-                                                         int height) {
-  dx11_video_format_converter_media_type_needs_init_ = true;
-
-  main_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::DismissStaleBuffers,
-                 weak_this_factory_.GetWeakPtr(), false));
-
-  main_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::RequestPictureBuffers,
-                 weak_this_factory_.GetWeakPtr(),
-                 width,
-                 height));
-}
-
-void DXVAVideoDecodeAccelerator::DismissStaleBuffers(bool force) {
-  RETURN_AND_NOTIFY_ON_FAILURE(make_context_current_cb_.Run(),
-                               "Failed to make context current",
-                               PLATFORM_FAILURE, );
-
-  OutputBuffers::iterator index;
-
-  for (index = output_picture_buffers_.begin();
-       index != output_picture_buffers_.end();
-       ++index) {
-    if (force || index->second->available()) {
-      DVLOG(1) << "Dismissing picture id: " << index->second->id();
-      client_->DismissPictureBuffer(index->second->id());
-    } else {
-      // Move to |stale_output_picture_buffers_| for deferred deletion.
-      stale_output_picture_buffers_.insert(
-          std::make_pair(index->first, index->second));
-    }
-  }
-
-  output_picture_buffers_.clear();
-}
-
-void DXVAVideoDecodeAccelerator::DeferredDismissStaleBuffer(
-    int32_t picture_buffer_id) {
-  RETURN_AND_NOTIFY_ON_FAILURE(make_context_current_cb_.Run(),
-                               "Failed to make context current",
-                               PLATFORM_FAILURE, );
-
-  OutputBuffers::iterator it = stale_output_picture_buffers_.find(
-      picture_buffer_id);
-  DCHECK(it != stale_output_picture_buffers_.end());
-  DVLOG(1) << "Dismissing picture id: " << it->second->id();
-  client_->DismissPictureBuffer(it->second->id());
-  stale_output_picture_buffers_.erase(it);
-}
-
-DXVAVideoDecodeAccelerator::State
-DXVAVideoDecodeAccelerator::GetState() {
-  static_assert(sizeof(State) == sizeof(long), "mismatched type sizes");
-  State state = static_cast<State>(
-      InterlockedAdd(reinterpret_cast<volatile long*>(&state_), 0));
-  return state;
-}
-
-void DXVAVideoDecodeAccelerator::SetState(State new_state) {
-  if (!main_thread_task_runner_->BelongsToCurrentThread()) {
-    main_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::SetState,
-                   weak_this_factory_.GetWeakPtr(),
-                   new_state));
-    return;
-  }
-
-  static_assert(sizeof(State) == sizeof(long), "mismatched type sizes");
-  ::InterlockedExchange(reinterpret_cast<volatile long*>(&state_),
-                        new_state);
-  DCHECK_EQ(state_, new_state);
-}
-
-void DXVAVideoDecodeAccelerator::StartDecoderThread() {
-  decoder_thread_.init_com_with_mta(false);
-  decoder_thread_.Start();
-  decoder_thread_task_runner_ = decoder_thread_.task_runner();
-}
-
-bool DXVAVideoDecodeAccelerator::OutputSamplesPresent() {
-  base::AutoLock lock(decoder_lock_);
-  return !pending_output_samples_.empty();
-}
-
-void DXVAVideoDecodeAccelerator::CopySurface(IDirect3DSurface9* src_surface,
-                                             IDirect3DSurface9* dest_surface,
-                                             int picture_buffer_id,
-                                             int input_buffer_id) {
-  if (!decoder_thread_task_runner_->BelongsToCurrentThread()) {
-    decoder_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::CopySurface,
-                   base::Unretained(this),
-                   src_surface,
-                   dest_surface,
-                   picture_buffer_id,
-                   input_buffer_id));
-    return;
-  }
-
-  HRESULT hr = d3d9_device_ex_->StretchRect(src_surface, NULL, dest_surface,
-                                            NULL, D3DTEXF_NONE);
-  RETURN_ON_HR_FAILURE(hr, "Colorspace conversion via StretchRect failed",);
-
-  // Ideally, this should be done immediately before the draw call that uses
-  // the texture. Flush it once here though.
-  hr = query_->Issue(D3DISSUE_END);
-  RETURN_ON_HR_FAILURE(hr, "Failed to issue END",);
-
-  // If we are sharing the ANGLE device we don't need to wait for the Flush to
-  // complete.
-  if (using_angle_device_) {
-    main_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::CopySurfaceComplete,
-                   weak_this_factory_.GetWeakPtr(),
-                   src_surface,
-                   dest_surface,
-                   picture_buffer_id,
-                   input_buffer_id));
-    return;
-  }
-
-  // Flush the decoder device to ensure that the decoded frame is copied to the
-  // target surface.
-  decoder_thread_task_runner_->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::FlushDecoder,
-                 base::Unretained(this), 0, src_surface, dest_surface,
-                 picture_buffer_id, input_buffer_id),
-      base::TimeDelta::FromMilliseconds(kFlushDecoderSurfaceTimeoutMs));
-}
-
-void DXVAVideoDecodeAccelerator::CopySurfaceComplete(
-    IDirect3DSurface9* src_surface,
-    IDirect3DSurface9* dest_surface,
-    int picture_buffer_id,
-    int input_buffer_id) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  // The output buffers may have changed in the following scenarios:-
-  // 1. A resolution change.
-  // 2. Decoder instance was destroyed.
-  // Ignore copy surface notifications for such buffers.
-  // copy surface notifications for such buffers.
-  OutputBuffers::iterator it = output_picture_buffers_.find(picture_buffer_id);
-  if (it == output_picture_buffers_.end())
-    return;
-
-  // If the picture buffer is marked as available it probably means that there
-  // was a Reset operation which dropped the output frame.
-  DXVAPictureBuffer* picture_buffer = it->second.get();
-  if (picture_buffer->available())
-    return;
-
-  RETURN_AND_NOTIFY_ON_FAILURE(make_context_current_cb_.Run(),
-                               "Failed to make context current",
-                               PLATFORM_FAILURE, );
-
-  DCHECK(!output_picture_buffers_.empty());
-
-  bool result = picture_buffer->CopySurfaceComplete(src_surface, dest_surface);
-  RETURN_AND_NOTIFY_ON_FAILURE(result, "Failed to complete copying surface",
-                               PLATFORM_FAILURE, );
-
-  NotifyPictureReady(picture_buffer->id(), input_buffer_id);
-
-  {
-    base::AutoLock lock(decoder_lock_);
-    if (!pending_output_samples_.empty())
-      pending_output_samples_.pop_front();
-  }
-
-  if (pending_flush_) {
-    decoder_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::FlushInternal,
-                   base::Unretained(this)));
-    return;
-  }
-  decoder_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::DecodePendingInputBuffers,
-                 base::Unretained(this)));
-}
-
-void DXVAVideoDecodeAccelerator::CopyTexture(
-    ID3D11Texture2D* src_texture,
-    ID3D11Texture2D* dest_texture,
-    base::win::ScopedComPtr<IDXGIKeyedMutex> dest_keyed_mutex,
-    uint64_t keyed_mutex_value,
-    IMFSample* video_frame,
-    int picture_buffer_id,
-    int input_buffer_id) {
-  HRESULT hr = E_FAIL;
-
-  DCHECK(use_dx11_);
-
-  if (!decoder_thread_task_runner_->BelongsToCurrentThread()) {
-    // The media foundation H.264 decoder outputs YUV12 textures which we
-    // cannot copy into ANGLE as they expect ARGB textures. In D3D land
-    // the StretchRect API in the IDirect3DDevice9Ex interface did the color
-    // space conversion for us. Sadly in DX11 land the API does not provide
-    // a straightforward way to do this.
-    // We use the video processor MFT.
-    // https://msdn.microsoft.com/en-us/library/hh162913(v=vs.85).aspx
-    // This object implements a media foundation transform (IMFTransform)
-    // which follows the same contract as the decoder. The color space
-    // conversion as per msdn is done in the GPU.
-
-    D3D11_TEXTURE2D_DESC source_desc;
-    src_texture->GetDesc(&source_desc);
-
-    // Set up the input and output types for the video processor MFT.
-    if (!InitializeDX11VideoFormatConverterMediaType(source_desc.Width,
-                                                     source_desc.Height)) {
-      RETURN_AND_NOTIFY_ON_FAILURE(
-          false, "Failed to initialize media types for convesion.",
-          PLATFORM_FAILURE,);
-    }
-
-    // The input to the video processor is the output sample.
-    base::win::ScopedComPtr<IMFSample> input_sample_for_conversion;
-    {
-      base::AutoLock lock(decoder_lock_);
-      PendingSampleInfo& sample_info = pending_output_samples_.front();
-      input_sample_for_conversion = sample_info.output_sample;
-    }
-
-    decoder_thread_task_runner_->PostTask(
-        FROM_HERE, base::Bind(&DXVAVideoDecodeAccelerator::CopyTexture,
-                              base::Unretained(this), src_texture, dest_texture,
-                              dest_keyed_mutex, keyed_mutex_value,
-                              input_sample_for_conversion.Detach(),
-                              picture_buffer_id, input_buffer_id));
-    return;
-  }
-
-  DCHECK(video_frame);
-
-  base::win::ScopedComPtr<IMFSample> input_sample;
-  input_sample.Attach(video_frame);
-
-  DCHECK(video_format_converter_mft_.get());
-
-  if (dest_keyed_mutex) {
-    HRESULT hr =
-        dest_keyed_mutex->AcquireSync(keyed_mutex_value, kAcquireSyncWaitMs);
-    RETURN_AND_NOTIFY_ON_FAILURE(
-        hr == S_OK, "D3D11 failed to acquire keyed mutex for texture.",
-        PLATFORM_FAILURE, );
-  }
-  // The video processor MFT requires output samples to be allocated by the
-  // caller. We create a sample with a buffer backed with the ID3D11Texture2D
-  // interface exposed by ANGLE. This works nicely as this ensures that the
-  // video processor coverts the color space of the output frame and copies
-  // the result into the ANGLE texture.
-  base::win::ScopedComPtr<IMFSample> output_sample;
-  hr = MFCreateSample(output_sample.Receive());
-  if (FAILED(hr)) {
-    RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-        "Failed to create output sample.", PLATFORM_FAILURE,);
-  }
-
-  base::win::ScopedComPtr<IMFMediaBuffer> output_buffer;
-  hr = MFCreateDXGISurfaceBuffer(
-      __uuidof(ID3D11Texture2D), dest_texture, 0, FALSE,
-      output_buffer.Receive());
-  if (FAILED(hr)) {
-    base::debug::Alias(&hr);
-    // TODO(ananta)
-    // Remove this CHECK when the change to use DX11 for H/W decoding
-    // stablizes.
-    CHECK(false);
-    RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-        "Failed to create output sample.", PLATFORM_FAILURE,);
-  }
-
-  output_sample->AddBuffer(output_buffer.get());
-
-  hr = video_format_converter_mft_->ProcessInput(0, video_frame, 0);
-  if (FAILED(hr)) {
-    DCHECK(false);
-    RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-        "Failed to convert output sample format.", PLATFORM_FAILURE,);
-  }
-
-  DWORD status = 0;
-  MFT_OUTPUT_DATA_BUFFER format_converter_output = {};
-  format_converter_output.pSample = output_sample.get();
-  hr = video_format_converter_mft_->ProcessOutput(
-        0,  // No flags
-        1,  // # of out streams to pull from
-        &format_converter_output,
-        &status);
-
-  if (FAILED(hr)) {
-    base::debug::Alias(&hr);
-    // TODO(ananta)
-    // Remove this CHECK when the change to use DX11 for H/W decoding
-    // stablizes.
-    CHECK(false);
-    RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-        "Failed to convert output sample format.", PLATFORM_FAILURE,);
-  }
-
-  if (dest_keyed_mutex) {
-    HRESULT hr = dest_keyed_mutex->ReleaseSync(keyed_mutex_value + 1);
-    RETURN_AND_NOTIFY_ON_FAILURE(hr == S_OK, "Failed to release keyed mutex.",
-                                 PLATFORM_FAILURE, );
-
-    main_thread_task_runner_->PostTask(
-        FROM_HERE, base::Bind(&DXVAVideoDecodeAccelerator::CopySurfaceComplete,
-                              weak_this_factory_.GetWeakPtr(), nullptr, nullptr,
-                              picture_buffer_id, input_buffer_id));
-  } else {
-    d3d11_device_context_->Flush();
-    d3d11_device_context_->End(d3d11_query_.get());
-
-    decoder_thread_task_runner_->PostDelayedTask(
-        FROM_HERE, base::Bind(&DXVAVideoDecodeAccelerator::FlushDecoder,
-                              base::Unretained(this), 0,
-                              reinterpret_cast<IDirect3DSurface9*>(NULL),
-                              reinterpret_cast<IDirect3DSurface9*>(NULL),
-                              picture_buffer_id, input_buffer_id),
-        base::TimeDelta::FromMilliseconds(kFlushDecoderSurfaceTimeoutMs));
-  }
-}
-
-void DXVAVideoDecodeAccelerator::FlushDecoder(
-    int iterations,
-    IDirect3DSurface9* src_surface,
-    IDirect3DSurface9* dest_surface,
-    int picture_buffer_id,
-    int input_buffer_id) {
-  DCHECK(decoder_thread_task_runner_->BelongsToCurrentThread());
-
-  // The DXVA decoder has its own device which it uses for decoding. ANGLE
-  // has its own device which we don't have access to.
-  // The above code attempts to copy the decoded picture into a surface
-  // which is owned by ANGLE. As there are multiple devices involved in
-  // this, the StretchRect call above is not synchronous.
-  // We attempt to flush the batched operations to ensure that the picture is
-  // copied to the surface owned by ANGLE.
-  // We need to do this in a loop and call flush multiple times.
-  // We have seen the GetData call for flushing the command buffer fail to
-  // return success occassionally on multi core machines, leading to an
-  // infinite loop.
-  // Workaround is to have an upper limit of 4 on the number of iterations to
-  // wait for the Flush to finish.
-
-  HRESULT hr = E_FAIL;
-  if (use_dx11_) {
-    BOOL query_data = 0;
-    hr = d3d11_device_context_->GetData(d3d11_query_.get(), &query_data,
-                                        sizeof(BOOL), 0);
-    if (FAILED(hr)) {
-      base::debug::Alias(&hr);
-      // TODO(ananta)
-      // Remove this CHECK when the change to use DX11 for H/W decoding
-      // stablizes.
-      CHECK(false);
-    }
-  } else {
-    hr = query_->GetData(NULL, 0, D3DGETDATA_FLUSH);
-  }
-
-  if ((hr == S_FALSE) && (++iterations < kMaxIterationsForD3DFlush)) {
-    decoder_thread_task_runner_->PostDelayedTask(
-        FROM_HERE,
-        base::Bind(&DXVAVideoDecodeAccelerator::FlushDecoder,
-                   base::Unretained(this), iterations, src_surface,
-                   dest_surface, picture_buffer_id, input_buffer_id),
-        base::TimeDelta::FromMilliseconds(kFlushDecoderSurfaceTimeoutMs));
-    return;
-  }
-
-  main_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::CopySurfaceComplete,
-                 weak_this_factory_.GetWeakPtr(),
-                 src_surface,
-                 dest_surface,
-                 picture_buffer_id,
-                 input_buffer_id));
-}
-
-bool DXVAVideoDecodeAccelerator::InitializeDX11VideoFormatConverterMediaType(
-    int width, int height) {
-  if (!dx11_video_format_converter_media_type_needs_init_)
-    return true;
-
-  CHECK(video_format_converter_mft_.get());
-
-  HRESULT hr = video_format_converter_mft_->ProcessMessage(
-      MFT_MESSAGE_SET_D3D_MANAGER,
-      reinterpret_cast<ULONG_PTR>(
-          d3d11_device_manager_.get()));
-
-  if (FAILED(hr)) {
-    base::debug::Alias(&hr);
-    // TODO(ananta)
-    // Remove this CHECK when the change to use DX11 for H/W decoding
-    // stablizes.
-    CHECK(false);
-  }
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr,
-      "Failed to initialize video format converter", PLATFORM_FAILURE, false);
-
-  video_format_converter_mft_->ProcessMessage(
-      MFT_MESSAGE_NOTIFY_END_STREAMING, 0);
-
-  base::win::ScopedComPtr<IMFMediaType> media_type;
-  hr = MFCreateMediaType(media_type.Receive());
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "MFCreateMediaType failed",
-      PLATFORM_FAILURE, false);
-
-  hr = media_type->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Video);
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "Failed to set major input type",
-      PLATFORM_FAILURE, false);
-
-  hr = media_type->SetGUID(MF_MT_SUBTYPE, MFVideoFormat_NV12);
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "Failed to set input sub type",
-      PLATFORM_FAILURE, false);
-
-  hr = MFSetAttributeSize(media_type.get(), MF_MT_FRAME_SIZE, width, height);
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "Failed to set media type attributes",
-      PLATFORM_FAILURE, false);
-
-  hr = video_format_converter_mft_->SetInputType(0, media_type.get(), 0);
-  if (FAILED(hr)) {
-    base::debug::Alias(&hr);
-    // TODO(ananta)
-    // Remove this CHECK when the change to use DX11 for H/W decoding
-    // stablizes.
-    CHECK(false);
-  }
-  RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "Failed to set converter input type",
-      PLATFORM_FAILURE, false);
-
-  // It appears that we fail to set MFVideoFormat_ARGB32 as the output media
-  // type in certain configurations. Try to fallback to MFVideoFormat_RGB32
-  // in such cases. If both fail, then bail.
-  bool media_type_set =
-      SetTransformOutputType(video_format_converter_mft_.get(),
-                             MFVideoFormat_ARGB32,
-                             width,
-                             height);
-  if (!media_type_set) {
-    media_type_set =
-        SetTransformOutputType(video_format_converter_mft_.get(),
-                               MFVideoFormat_RGB32,
-                               width,
-                               height);
-  }
-
-  if (!media_type_set) {
-    // Remove this once this stabilizes in the field.
-    CHECK(false);
-    LOG(ERROR) << "Failed to find a matching RGB output type in the converter";
-    return false;
-  }
-
-  dx11_video_format_converter_media_type_needs_init_ = false;
-  return true;
-}
-
-bool DXVAVideoDecodeAccelerator::GetVideoFrameDimensions(
-    IMFSample* sample,
-    int* width,
-    int* height) {
-  base::win::ScopedComPtr<IMFMediaBuffer> output_buffer;
-  HRESULT hr = sample->GetBufferByIndex(0, output_buffer.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to get buffer from output sample", false);
-
-  if (use_dx11_) {
-    base::win::ScopedComPtr<IMFDXGIBuffer> dxgi_buffer;
-    base::win::ScopedComPtr<ID3D11Texture2D> d3d11_texture;
-    hr = dxgi_buffer.QueryFrom(output_buffer.get());
-    RETURN_ON_HR_FAILURE(hr, "Failed to get DXGIBuffer from output sample",
-                         false);
-    hr = dxgi_buffer->GetResource(
-        __uuidof(ID3D11Texture2D),
-        reinterpret_cast<void**>(d3d11_texture.Receive()));
-    RETURN_ON_HR_FAILURE(hr, "Failed to get D3D11Texture from output buffer",
-                         false);
-    D3D11_TEXTURE2D_DESC d3d11_texture_desc;
-    d3d11_texture->GetDesc(&d3d11_texture_desc);
-    *width = d3d11_texture_desc.Width;
-    *height = d3d11_texture_desc.Height;
-  } else {
-    base::win::ScopedComPtr<IDirect3DSurface9> surface;
-    hr = MFGetService(output_buffer.get(), MR_BUFFER_SERVICE,
-                      IID_PPV_ARGS(surface.Receive()));
-    RETURN_ON_HR_FAILURE(hr, "Failed to get D3D surface from output sample",
-                         false);
-    D3DSURFACE_DESC surface_desc;
-    hr = surface->GetDesc(&surface_desc);
-    RETURN_ON_HR_FAILURE(hr, "Failed to get surface description", false);
-    *width = surface_desc.Width;
-    *height = surface_desc.Height;
-  }
-  return true;
-}
-
-bool DXVAVideoDecodeAccelerator::SetTransformOutputType(
-    IMFTransform* transform,
-    const GUID& output_type,
-    int width,
-    int height) {
-  HRESULT hr = E_FAIL;
-  base::win::ScopedComPtr<IMFMediaType> media_type;
-
-  for (uint32_t i = 0;
-       SUCCEEDED(transform->GetOutputAvailableType(
-           0, i, media_type.Receive()));
-       ++i) {
-    GUID out_subtype = {0};
-    hr = media_type->GetGUID(MF_MT_SUBTYPE, &out_subtype);
-    RETURN_ON_HR_FAILURE(hr, "Failed to get output major type", false);
-
-    if (out_subtype == output_type) {
-      if (width && height) {
-        hr = MFSetAttributeSize(media_type.get(), MF_MT_FRAME_SIZE, width,
-                                height);
-        RETURN_ON_HR_FAILURE(hr, "Failed to set media type attributes", false);
-      }
-      hr = transform->SetOutputType(0, media_type.get(), 0);  // No flags
-      RETURN_ON_HR_FAILURE(hr, "Failed to set output type", false);
-      return true;
-    }
-    media_type.Release();
-  }
-  return false;
-}
-
-HRESULT DXVAVideoDecodeAccelerator::CheckConfigChanged(
-    IMFSample* sample, bool* config_changed) {
-  if (codec_ != media::kCodecH264)
-    return S_FALSE;
-
-  base::win::ScopedComPtr<IMFMediaBuffer> buffer;
-  HRESULT hr = sample->GetBufferByIndex(0, buffer.Receive());
-  RETURN_ON_HR_FAILURE(hr, "Failed to get buffer from input sample", hr);
-
-  MediaBufferScopedPointer scoped_media_buffer(buffer.get());
-
-  if (!config_change_detector_->DetectConfig(
-          scoped_media_buffer.get(),
-          scoped_media_buffer.current_length())) {
-    RETURN_ON_HR_FAILURE(E_FAIL, "Failed to detect H.264 stream config",
-        E_FAIL);
-  }
-  *config_changed = config_change_detector_->config_changed();
-  return S_OK;
-}
-
-void DXVAVideoDecodeAccelerator::ConfigChanged(
-    const Config& config) {
-  DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
-
-  SetState(kConfigChange);
-  DismissStaleBuffers(true);
-  Invalidate();
-  Initialize(config_, client_);
-  decoder_thread_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&DXVAVideoDecodeAccelerator::DecodePendingInputBuffers,
-                 base::Unretained(this)));
-}
-
-}  // namespace content