Fix V4L2VideoEncodeAccelerator is not enabled in GN build

media/gpu/ipc/service/gpu_video_encode_accelerator.cc

 // Copyright 2013 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 "media/gpu/ipc/service/gpu_video_encode_accelerator.h"
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/shared_memory.h"
 #include "base/numerics/safe_math.h"
 #include "base/sys_info.h"
 #include "build/build_config.h"
 #include "gpu/ipc/client/gpu_memory_buffer_impl.h"
 #include "gpu/ipc/service/gpu_channel.h"
 #include "gpu/ipc/service/gpu_channel_manager.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/base/limits.h"
 #include "media/base/video_frame.h"
 #include "media/gpu/gpu_video_accelerator_util.h"
 #include "media/gpu/ipc/common/media_messages.h"
 
 #if defined(OS_CHROMEOS)
-#if defined(USE_V4L2_CODEC)
+#if defined(ARCH_CPU_ARMEL) || (defined(USE_OZONE) && defined(USE_V4L2_CODEC))
 #include "media/gpu/v4l2_video_encode_accelerator.h"
 #endif
 #if defined(ARCH_CPU_X86_FAMILY)
 #include "media/gpu/vaapi_video_encode_accelerator.h"
 #endif
 #elif defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
 #include "media/gpu/android_video_encode_accelerator.h"
 #elif defined(OS_MACOSX)
 #include "media/gpu/vt_video_encode_accelerator_mac.h"
 #endif
@@ skipping 148 matching lines @@
                                                         &profiles);
   }
   return GpuVideoAcceleratorUtil::ConvertMediaToGpuEncodeProfiles(profiles);
 }
 
 // static
 std::vector<GpuVideoEncodeAccelerator::CreateVEAFp>
 GpuVideoEncodeAccelerator::CreateVEAFps(
     const gpu::GpuPreferences& gpu_preferences) {
   std::vector<GpuVideoEncodeAccelerator::CreateVEAFp> create_vea_fps;
-#if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
+
+#if defined(OS_CHROMEOS) && (defined(ARCH_CPU_ARMEL) || \
+                             (defined(USE_OZONE) && defined(USE_V4L2_CODEC)))

[wuchengli, 2016/07/12 11:39:51]

This is not directly related to gn change. Please separate
gpu_video_encode_accelerator.h/gpu_video_encode_accelerator.cc to another CL.

   create_vea_fps.push_back(&GpuVideoEncodeAccelerator::CreateV4L2VEA);
 #endif
 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
   if (!gpu_preferences.disable_vaapi_accelerated_video_encode)
     create_vea_fps.push_back(&GpuVideoEncodeAccelerator::CreateVaapiVEA);
 #endif
 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
   if (!gpu_preferences.disable_web_rtc_hw_encoding)
     create_vea_fps.push_back(&GpuVideoEncodeAccelerator::CreateAndroidVEA);
 #endif
 #if defined(OS_MACOSX)
   create_vea_fps.push_back(&GpuVideoEncodeAccelerator::CreateVTVEA);
 #endif
   return create_vea_fps;
 }
 
-#if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
+#if defined(OS_CHROMEOS) && (defined(ARCH_CPU_ARMEL) || \
+                             (defined(USE_OZONE) && defined(USE_V4L2_CODEC)))
 // static
 std::unique_ptr<VideoEncodeAccelerator>
 GpuVideoEncodeAccelerator::CreateV4L2VEA() {
   std::unique_ptr<VideoEncodeAccelerator> encoder;
   scoped_refptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kEncoder);
   if (device)
     encoder.reset(new V4L2VideoEncodeAccelerator(device));
   return encoder;
 }
 #endif
@@ skipping 142 matching lines @@
   Send(new AcceleratedVideoEncoderHostMsg_NotifyInputDone(host_route_id_,
                                                           frame_id));
   // Just let |shm| fall out of scope.
 }
 
 void GpuVideoEncodeAccelerator::Send(IPC::Message* message) {
   stub_->channel()->Send(message);
 }
 
 }  // namespace media