Create a public API around webkit::ppapi::PluginInstance and use it in chrome. After this, webkit/p…

webkit/plugins/ppapi/ppapi_plugin_instance.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 "webkit/plugins/ppapi/ppapi_plugin_instance.h"
-
-#include "base/bind.h"
-#include "base/callback_helpers.h"
-#include "base/debug/trace_event.h"
-#include "base/logging.h"
-#include "base/memory/linked_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/stl_util.h"
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_offset_string_conversions.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/time/time.h"
-#include "cc/layers/texture_layer.h"
-#include "ppapi/c/dev/ppb_find_dev.h"
-#include "ppapi/c/dev/ppb_zoom_dev.h"
-#include "ppapi/c/dev/ppp_find_dev.h"
-#include "ppapi/c/dev/ppp_selection_dev.h"
-#include "ppapi/c/dev/ppp_text_input_dev.h"
-#include "ppapi/c/dev/ppp_zoom_dev.h"
-#include "ppapi/c/pp_rect.h"
-#include "ppapi/c/ppb_audio_config.h"
-#include "ppapi/c/ppb_core.h"
-#include "ppapi/c/ppb_gamepad.h"
-#include "ppapi/c/ppp_input_event.h"
-#include "ppapi/c/ppp_instance.h"
-#include "ppapi/c/ppp_messaging.h"
-#include "ppapi/c/ppp_mouse_lock.h"
-#include "ppapi/c/private/ppp_instance_private.h"
-#include "ppapi/shared_impl/ppapi_permissions.h"
-#include "ppapi/shared_impl/ppapi_preferences.h"
-#include "ppapi/shared_impl/ppb_gamepad_shared.h"
-#include "ppapi/shared_impl/ppb_input_event_shared.h"
-#include "ppapi/shared_impl/ppb_url_util_shared.h"
-#include "ppapi/shared_impl/ppb_view_shared.h"
-#include "ppapi/shared_impl/ppp_instance_combined.h"
-#include "ppapi/shared_impl/resource.h"
-#include "ppapi/shared_impl/scoped_pp_resource.h"
-#include "ppapi/shared_impl/time_conversion.h"
-#include "ppapi/shared_impl/url_request_info_data.h"
-#include "ppapi/shared_impl/var.h"
-#include "ppapi/thunk/enter.h"
-#include "ppapi/thunk/ppb_buffer_api.h"
-#include "printing/metafile.h"
-#include "printing/metafile_skia_wrapper.h"
-#include "printing/units.h"
-#include "skia/ext/platform_canvas.h"
-#include "skia/ext/platform_device.h"
-#include "third_party/WebKit/public/platform/WebGamepads.h"
-#include "third_party/WebKit/public/platform/WebString.h"
-#include "third_party/WebKit/public/platform/WebURL.h"
-#include "third_party/WebKit/public/platform/WebURLError.h"
-#include "third_party/WebKit/public/platform/WebURLRequest.h"
-#include "third_party/WebKit/public/web/WebBindings.h"
-#include "third_party/WebKit/public/web/WebCompositionUnderline.h"
-#include "third_party/WebKit/public/web/WebCursorInfo.h"
-#include "third_party/WebKit/public/web/WebDocument.h"
-#include "third_party/WebKit/public/web/WebElement.h"
-#include "third_party/WebKit/public/web/WebFrame.h"
-#include "third_party/WebKit/public/web/WebInputEvent.h"
-#include "third_party/WebKit/public/web/WebPluginContainer.h"
-#include "third_party/WebKit/public/web/WebPrintParams.h"
-#include "third_party/WebKit/public/web/WebPrintScalingOption.h"
-#include "third_party/WebKit/public/web/WebScopedUserGesture.h"
-#include "third_party/WebKit/public/web/WebSecurityOrigin.h"
-#include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
-#include "third_party/WebKit/public/web/WebView.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkRect.h"
-#include "ui/base/range/range.h"
-#include "ui/gfx/image/image_skia.h"
-#include "ui/gfx/image/image_skia_rep.h"
-#include "ui/gfx/rect_conversions.h"
-#include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
-#include "v8/include/v8.h"
-#include "webkit/plugins/plugin_constants.h"
-#include "webkit/plugins/ppapi/common.h"
-#include "webkit/plugins/ppapi/content_decryptor_delegate.h"
-#include "webkit/plugins/ppapi/event_conversion.h"
-#include "webkit/plugins/ppapi/fullscreen_container.h"
-#include "webkit/plugins/ppapi/gfx_conversion.h"
-#include "webkit/plugins/ppapi/host_globals.h"
-#include "webkit/plugins/ppapi/message_channel.h"
-#include "webkit/plugins/ppapi/npapi_glue.h"
-#include "webkit/plugins/ppapi/plugin_module.h"
-#include "webkit/plugins/ppapi/plugin_object.h"
-#include "webkit/plugins/ppapi/ppb_buffer_impl.h"
-#include "webkit/plugins/ppapi/ppb_file_ref_impl.h"
-#include "webkit/plugins/ppapi/ppb_graphics_3d_impl.h"
-#include "webkit/plugins/ppapi/ppb_image_data_impl.h"
-#include "webkit/plugins/ppapi/ppp_pdf.h"
-#include "webkit/plugins/ppapi/url_request_info_util.h"
-#include "webkit/plugins/sad_plugin.h"
-#include "webkit/renderer/compositor_bindings/web_layer_impl.h"
-
-#if defined(OS_MACOSX)
-#include "printing/metafile_impl.h"
-#endif  // defined(OS_MACOSX)
-
-#if defined(OS_WIN)
-#include "base/metrics/histogram.h"
-#include "base/win/windows_version.h"
-#include "skia/ext/platform_canvas.h"
-#include "ui/gfx/codec/jpeg_codec.h"
-#include "ui/gfx/gdi_util.h"
-#endif
-
-using base::StringPrintf;
-using ppapi::InputEventData;
-using ppapi::PpapiGlobals;
-using ppapi::PPB_InputEvent_Shared;
-using ppapi::PPB_View_Shared;
-using ppapi::PPP_Instance_Combined;
-using ppapi::Resource;
-using ppapi::ScopedPPResource;
-using ppapi::StringVar;
-using ppapi::TrackedCallback;
-using ppapi::thunk::EnterResourceNoLock;
-using ppapi::thunk::PPB_Buffer_API;
-using ppapi::thunk::PPB_Gamepad_API;
-using ppapi::thunk::PPB_Graphics2D_API;
-using ppapi::thunk::PPB_Graphics3D_API;
-using ppapi::thunk::PPB_ImageData_API;
-using ppapi::Var;
-using ppapi::ArrayBufferVar;
-using ppapi::ViewData;
-using WebKit::WebBindings;
-using WebKit::WebCanvas;
-using WebKit::WebCursorInfo;
-using WebKit::WebDocument;
-using WebKit::WebElement;
-using WebKit::WebFrame;
-using WebKit::WebInputEvent;
-using WebKit::WebPlugin;
-using WebKit::WebPluginContainer;
-using WebKit::WebPrintParams;
-using WebKit::WebPrintScalingOption;
-using WebKit::WebScopedUserGesture;
-using WebKit::WebString;
-using WebKit::WebURLError;
-using WebKit::WebURLLoader;
-using WebKit::WebURLLoaderClient;
-using WebKit::WebURLRequest;
-using WebKit::WebURLResponse;
-using WebKit::WebUserGestureIndicator;
-using WebKit::WebUserGestureToken;
-using WebKit::WebView;
-
-namespace webkit {
-namespace ppapi {
-
-#if defined(OS_WIN)
-// Exported by pdf.dll
-typedef bool (*RenderPDFPageToDCProc)(
-    const unsigned char* pdf_buffer, int buffer_size, int page_number, HDC dc,
-    int dpi_x, int dpi_y, int bounds_origin_x, int bounds_origin_y,
-    int bounds_width, int bounds_height, bool fit_to_bounds,
-    bool stretch_to_bounds, bool keep_aspect_ratio, bool center_in_bounds,
-    bool autorotate);
-
-void DrawEmptyRectangle(HDC dc) {
-  // TODO(sanjeevr): This is a temporary hack. If we output a JPEG
-  // to the EMF, the EnumEnhMetaFile call fails in the browser
-  // process. The failure also happens if we output nothing here.
-  // We need to investigate the reason for this failure and fix it.
-  // In the meantime this temporary hack of drawing an empty
-  // rectangle in the DC gets us by.
-  Rectangle(dc, 0, 0, 0, 0);
-}
-#endif  // defined(OS_WIN)
-
-namespace {
-
-// Check PP_TextInput_Type and ui::TextInputType are kept in sync.
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_NONE) == \
-    int(PP_TEXTINPUT_TYPE_NONE), mismatching_enums);
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_TEXT) == \
-    int(PP_TEXTINPUT_TYPE_TEXT), mismatching_enums);
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_PASSWORD) == \
-    int(PP_TEXTINPUT_TYPE_PASSWORD), mismatching_enums);
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_SEARCH) == \
-    int(PP_TEXTINPUT_TYPE_SEARCH), mismatching_enums);
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_EMAIL) == \
-    int(PP_TEXTINPUT_TYPE_EMAIL), mismatching_enums);
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_NUMBER) == \
-    int(PP_TEXTINPUT_TYPE_NUMBER), mismatching_enums);
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_TELEPHONE) == \
-    int(PP_TEXTINPUT_TYPE_TELEPHONE), mismatching_enums);
-COMPILE_ASSERT(int(ui::TEXT_INPUT_TYPE_URL) == \
-    int(PP_TEXTINPUT_TYPE_URL), mismatching_enums);
-
-// The default text input type is to regard the plugin always accept text input.
-// This is for allowing users to use input methods even on completely-IME-
-// unaware plugins (e.g., PPAPI Flash or PDF plugin for M16).
-// Plugins need to explicitly opt out the text input mode if they know
-// that they don't accept texts.
-const ui::TextInputType kPluginDefaultTextInputType = ui::TEXT_INPUT_TYPE_TEXT;
-
-#define COMPILE_ASSERT_MATCHING_ENUM(webkit_name, np_name) \
-    COMPILE_ASSERT(static_cast<int>(WebCursorInfo::webkit_name) \
-                       == static_cast<int>(np_name), \
-                   mismatching_enums)
-
-#define COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(webkit_name, pp_name) \
-    COMPILE_ASSERT(static_cast<int>(webkit_name) \
-                       == static_cast<int>(pp_name), \
-                   mismatching_enums)
-
-// <embed>/<object> attributes.
-const char kWidth[] = "width";
-const char kHeight[] = "height";
-const char kBorder[] = "border";  // According to w3c, deprecated.
-const char kStyle[] = "style";
-
-COMPILE_ASSERT_MATCHING_ENUM(TypePointer, PP_MOUSECURSOR_TYPE_POINTER);
-COMPILE_ASSERT_MATCHING_ENUM(TypeCross, PP_MOUSECURSOR_TYPE_CROSS);
-COMPILE_ASSERT_MATCHING_ENUM(TypeHand, PP_MOUSECURSOR_TYPE_HAND);
-COMPILE_ASSERT_MATCHING_ENUM(TypeIBeam, PP_MOUSECURSOR_TYPE_IBEAM);
-COMPILE_ASSERT_MATCHING_ENUM(TypeWait, PP_MOUSECURSOR_TYPE_WAIT);
-COMPILE_ASSERT_MATCHING_ENUM(TypeHelp, PP_MOUSECURSOR_TYPE_HELP);
-COMPILE_ASSERT_MATCHING_ENUM(TypeEastResize, PP_MOUSECURSOR_TYPE_EASTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthResize, PP_MOUSECURSOR_TYPE_NORTHRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthEastResize,
-                             PP_MOUSECURSOR_TYPE_NORTHEASTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthWestResize,
-                             PP_MOUSECURSOR_TYPE_NORTHWESTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeSouthResize, PP_MOUSECURSOR_TYPE_SOUTHRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeSouthEastResize,
-                             PP_MOUSECURSOR_TYPE_SOUTHEASTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeSouthWestResize,
-                             PP_MOUSECURSOR_TYPE_SOUTHWESTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeWestResize, PP_MOUSECURSOR_TYPE_WESTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthSouthResize,
-                             PP_MOUSECURSOR_TYPE_NORTHSOUTHRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeEastWestResize,
-                             PP_MOUSECURSOR_TYPE_EASTWESTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthEastSouthWestResize,
-                             PP_MOUSECURSOR_TYPE_NORTHEASTSOUTHWESTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthWestSouthEastResize,
-                             PP_MOUSECURSOR_TYPE_NORTHWESTSOUTHEASTRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeColumnResize,
-                             PP_MOUSECURSOR_TYPE_COLUMNRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeRowResize, PP_MOUSECURSOR_TYPE_ROWRESIZE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeMiddlePanning,
-                             PP_MOUSECURSOR_TYPE_MIDDLEPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeEastPanning, PP_MOUSECURSOR_TYPE_EASTPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthPanning,
-                             PP_MOUSECURSOR_TYPE_NORTHPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthEastPanning,
-                             PP_MOUSECURSOR_TYPE_NORTHEASTPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNorthWestPanning,
-                             PP_MOUSECURSOR_TYPE_NORTHWESTPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeSouthPanning,
-                             PP_MOUSECURSOR_TYPE_SOUTHPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeSouthEastPanning,
-                             PP_MOUSECURSOR_TYPE_SOUTHEASTPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeSouthWestPanning,
-                             PP_MOUSECURSOR_TYPE_SOUTHWESTPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeWestPanning, PP_MOUSECURSOR_TYPE_WESTPANNING);
-COMPILE_ASSERT_MATCHING_ENUM(TypeMove, PP_MOUSECURSOR_TYPE_MOVE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeVerticalText,
-                             PP_MOUSECURSOR_TYPE_VERTICALTEXT);
-COMPILE_ASSERT_MATCHING_ENUM(TypeCell, PP_MOUSECURSOR_TYPE_CELL);
-COMPILE_ASSERT_MATCHING_ENUM(TypeContextMenu, PP_MOUSECURSOR_TYPE_CONTEXTMENU);
-COMPILE_ASSERT_MATCHING_ENUM(TypeAlias, PP_MOUSECURSOR_TYPE_ALIAS);
-COMPILE_ASSERT_MATCHING_ENUM(TypeProgress, PP_MOUSECURSOR_TYPE_PROGRESS);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNoDrop, PP_MOUSECURSOR_TYPE_NODROP);
-COMPILE_ASSERT_MATCHING_ENUM(TypeCopy, PP_MOUSECURSOR_TYPE_COPY);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNone, PP_MOUSECURSOR_TYPE_NONE);
-COMPILE_ASSERT_MATCHING_ENUM(TypeNotAllowed, PP_MOUSECURSOR_TYPE_NOTALLOWED);
-COMPILE_ASSERT_MATCHING_ENUM(TypeZoomIn, PP_MOUSECURSOR_TYPE_ZOOMIN);
-COMPILE_ASSERT_MATCHING_ENUM(TypeZoomOut, PP_MOUSECURSOR_TYPE_ZOOMOUT);
-COMPILE_ASSERT_MATCHING_ENUM(TypeGrab, PP_MOUSECURSOR_TYPE_GRAB);
-COMPILE_ASSERT_MATCHING_ENUM(TypeGrabbing, PP_MOUSECURSOR_TYPE_GRABBING);
-// Do not assert WebCursorInfo::TypeCustom == PP_CURSORTYPE_CUSTOM;
-// PP_CURSORTYPE_CUSTOM is pinned to allow new cursor types.
-
-COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(WebKit::WebPrintScalingOptionNone,
-                                           PP_PRINTSCALINGOPTION_NONE);
-COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(
-    WebKit::WebPrintScalingOptionFitToPrintableArea,
-    PP_PRINTSCALINGOPTION_FIT_TO_PRINTABLE_AREA);
-COMPILE_ASSERT_PRINT_SCALING_MATCHING_ENUM(
-    WebKit::WebPrintScalingOptionSourceSize, PP_PRINTSCALINGOPTION_SOURCE_SIZE);
-
-// Sets |*security_origin| to be the WebKit security origin associated with the
-// document containing the given plugin instance. On success, returns true. If
-// the instance is invalid, returns false and |*security_origin| will be
-// unchanged.
-bool SecurityOriginForInstance(PP_Instance instance_id,
-                               WebKit::WebSecurityOrigin* security_origin) {
-  PluginInstance* instance = HostGlobals::Get()->GetInstance(instance_id);
-  if (!instance)
-    return false;
-
-  WebElement plugin_element = instance->container()->element();
-  *security_origin = plugin_element.document().securityOrigin();
-  return true;
-}
-
-// Convert the given vector to an array of C-strings. The strings in the
-// returned vector are only guaranteed valid so long as the vector of strings
-// is not modified.
-scoped_ptr<const char*[]> StringVectorToArgArray(
-    const std::vector<std::string>& vector) {
-  scoped_ptr<const char*[]> array(new const char*[vector.size()]);
-  for (size_t i = 0; i < vector.size(); ++i)
-    array[i] = vector[i].c_str();
-  return array.Pass();
-}
-
-}  // namespace
-
-// static
-PluginInstance* PluginInstance::Create(PluginDelegate* delegate,
-                                       content::RenderView* render_view,
-                                       PluginModule* module,
-                                       WebPluginContainer* container,
-                                       const GURL& plugin_url) {
-  base::Callback<const void*(const char*)> get_plugin_interface_func =
-      base::Bind(&PluginModule::GetPluginInterface, module);
-  PPP_Instance_Combined* ppp_instance_combined =
-      PPP_Instance_Combined::Create(get_plugin_interface_func);
-  if (!ppp_instance_combined)
-    return NULL;
-  return new PluginInstance(delegate, render_view, module,
-                            ppp_instance_combined, container, plugin_url);
-}
-
-PluginInstance::NaClDocumentLoader::NaClDocumentLoader()
-    : finished_loading_(false) {
-}
-
-PluginInstance::NaClDocumentLoader::~NaClDocumentLoader(){
-}
-
-void PluginInstance::NaClDocumentLoader::ReplayReceivedData(
-    WebURLLoaderClient* document_loader) {
-  for (std::list<std::string>::iterator it = data_.begin();
-       it != data_.end(); ++it) {
-    document_loader->didReceiveData(NULL, it->c_str(), it->length(),
-                                    0 /* encoded_data_length */);
-  }
-  if (finished_loading_) {
-    document_loader->didFinishLoading(NULL,
-                                      0 /* finish_time */);
-  }
-  if (error_.get()) {
-    document_loader->didFail(NULL, *error_);
-  }
-}
-
-void PluginInstance::NaClDocumentLoader::didReceiveData(
-    WebURLLoader* loader,
-    const char* data,
-    int data_length,
-    int encoded_data_length) {
-  data_.push_back(std::string(data, data_length));
-}
-
-void PluginInstance::NaClDocumentLoader::didFinishLoading(
-    WebURLLoader* loader,
-    double finish_time) {
-  DCHECK(!finished_loading_);
-  finished_loading_ = true;
-}
-
-void PluginInstance::NaClDocumentLoader::didFail(
-    WebURLLoader* loader,
-    const WebURLError& error) {
-  DCHECK(!error_.get());
-  error_.reset(new WebURLError(error));
-}
-
-PluginInstance::GamepadImpl::GamepadImpl(PluginDelegate* delegate)
-    : Resource(::ppapi::Resource::Untracked()),
-      delegate_(delegate) {
-}
-
-PPB_Gamepad_API* PluginInstance::GamepadImpl::AsPPB_Gamepad_API() {
-  return this;
-}
-
-void PluginInstance::GamepadImpl::Sample(PP_Instance /* instance */,
-                                         PP_GamepadsSampleData* data) {
-  WebKit::WebGamepads webkit_data;
-  delegate_->SampleGamepads(&webkit_data);
-  ConvertWebKitGamepadData(
-      *reinterpret_cast<const ::ppapi::WebKitGamepads*>(&webkit_data), data);
-}
-
-PluginInstance::PluginInstance(
-    PluginDelegate* delegate,
-    content::RenderView* render_view,
-    PluginModule* module,
-    ::ppapi::PPP_Instance_Combined* instance_interface,
-    WebPluginContainer* container,
-    const GURL& plugin_url)
-    : delegate_(delegate),
-      render_view_(render_view),
-      module_(module),
-      instance_interface_(instance_interface),
-      pp_instance_(0),
-      container_(container),
-      layer_bound_to_fullscreen_(false),
-      plugin_url_(plugin_url),
-      full_frame_(false),
-      sent_initial_did_change_view_(false),
-      view_change_weak_ptr_factory_(this),
-      bound_graphics_2d_platform_(NULL),
-      has_webkit_focus_(false),
-      has_content_area_focus_(false),
-      find_identifier_(-1),
-      plugin_find_interface_(NULL),
-      plugin_input_event_interface_(NULL),
-      plugin_messaging_interface_(NULL),
-      plugin_mouse_lock_interface_(NULL),
-      plugin_pdf_interface_(NULL),
-      plugin_private_interface_(NULL),
-      plugin_selection_interface_(NULL),
-      plugin_textinput_interface_(NULL),
-      plugin_zoom_interface_(NULL),
-      checked_for_plugin_input_event_interface_(false),
-      checked_for_plugin_messaging_interface_(false),
-      checked_for_plugin_pdf_interface_(false),
-      gamepad_impl_(new GamepadImpl(delegate)),
-      plugin_print_interface_(NULL),
-      plugin_graphics_3d_interface_(NULL),
-      always_on_top_(false),
-      fullscreen_container_(NULL),
-      flash_fullscreen_(false),
-      desired_fullscreen_state_(false),
-      sad_plugin_(NULL),
-      input_event_mask_(0),
-      filtered_input_event_mask_(0),
-      text_input_type_(kPluginDefaultTextInputType),
-      text_input_caret_(0, 0, 0, 0),
-      text_input_caret_bounds_(0, 0, 0, 0),
-      text_input_caret_set_(false),
-      selection_caret_(0),
-      selection_anchor_(0),
-      pending_user_gesture_(0.0),
-      document_loader_(NULL),
-      nacl_document_load_(false),
-      npp_(new NPP_t),
-      isolate_(v8::Isolate::GetCurrent()) {
-  pp_instance_ = HostGlobals::Get()->AddInstance(this);
-
-  memset(&current_print_settings_, 0, sizeof(current_print_settings_));
-  DCHECK(delegate);
-  module_->InstanceCreated(this);
-  delegate_->InstanceCreated(this);
-
-  view_data_.is_page_visible = delegate->IsPageVisible();
-  resource_creation_ = delegate_->CreateResourceCreationAPI(this);
-
-  // TODO(bbudge) remove this when the trusted NaCl plugin has been removed.
-  // We must defer certain plugin events for NaCl instances since we switch
-  // from the in-process to the out-of-process proxy after instantiating them.
-  if (module->name() == "Native Client")
-    nacl_document_load_ = true;
-}
-
-PluginInstance::~PluginInstance() {
-  DCHECK(!fullscreen_container_);
-
-  // Force-unbind any Graphics. In the case of Graphics2D, if the plugin
-  // leaks the graphics 2D, it may actually get cleaned up after our
-  // destruction, so we need its pointers to be up-to-date.
-  BindGraphics(pp_instance(), 0);
-
-  // Free all the plugin objects. This will automatically clear the back-
-  // pointer from the NPObject so WebKit can't call into the plugin any more.
-  //
-  // Swap out the set so we can delete from it (the objects will try to
-  // unregister themselves inside the delete call).
-  PluginObjectSet plugin_object_copy;
-  live_plugin_objects_.swap(plugin_object_copy);
-  for (PluginObjectSet::iterator i = plugin_object_copy.begin();
-       i != plugin_object_copy.end(); ++i)
-    delete *i;
-
-  if (TrackedCallback::IsPending(lock_mouse_callback_))
-    lock_mouse_callback_->Abort();
-
-  delegate_->InstanceDeleted(this);
-  module_->InstanceDeleted(this);
-  // If we switched from the NaCl plugin module, notify it too.
-  if (original_module_.get())
-    original_module_->InstanceDeleted(this);
-
-  // This should be last since some of the above "instance deleted" calls will
-  // want to look up in the global map to get info off of our object.
-  HostGlobals::Get()->InstanceDeleted(pp_instance_);
-}
-
-// NOTE: Any of these methods that calls into the plugin needs to take into
-// account that the plugin may use Var to remove the <embed> from the DOM, which
-// will make the WebPluginImpl drop its reference, usually the last one. If a
-// method needs to access a member of the instance after the call has returned,
-// then it needs to keep its own reference on the stack.
-
-void PluginInstance::Delete() {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  // Force the MessageChannel to release its "passthrough object" which should
-  // release our last reference to the "InstanceObject" and will probably
-  // destroy it. We want to do this prior to calling DidDestroy in case the
-  // destructor of the instance object tries to use the instance.
-  message_channel_->SetPassthroughObject(NULL);
-  // If this is a NaCl plugin instance, shut down the NaCl plugin by calling
-  // its DidDestroy. Don't call DidDestroy on the untrusted plugin instance,
-  // since there is little that it can do at this point.
-  if (original_instance_interface_)
-    original_instance_interface_->DidDestroy(pp_instance());
-  else
-    instance_interface_->DidDestroy(pp_instance());
-  // Ensure we don't attempt to call functions on the destroyed instance.
-  original_instance_interface_.reset();
-  instance_interface_.reset();
-
-  if (fullscreen_container_) {
-    fullscreen_container_->Destroy();
-    fullscreen_container_ = NULL;
-  }
-  bound_graphics_3d_ = NULL;
-  UpdateLayer();
-  container_ = NULL;
-}
-
-void PluginInstance::Paint(WebCanvas* canvas,
-                           const gfx::Rect& plugin_rect,
-                           const gfx::Rect& paint_rect) {
-  TRACE_EVENT0("ppapi", "PluginInstance::Paint");
-  if (module()->is_crashed()) {
-    // Crashed plugin painting.
-    if (!sad_plugin_)  // Lazily initialize bitmap.
-      sad_plugin_ = delegate_->GetSadPluginBitmap();
-    if (sad_plugin_)
-      webkit::PaintSadPlugin(canvas, plugin_rect, *sad_plugin_);
-    return;
-  }
-
-  PluginDelegate::PlatformGraphics2D* bound_graphics_2d = GetBoundGraphics2D();
-  if (bound_graphics_2d)
-    bound_graphics_2d->Paint(canvas, plugin_rect, paint_rect);
-}
-
-void PluginInstance::InvalidateRect(const gfx::Rect& rect) {
-  if (fullscreen_container_) {
-    if (rect.IsEmpty())
-      fullscreen_container_->Invalidate();
-    else
-      fullscreen_container_->InvalidateRect(rect);
-  } else {
-    if (!container_ ||
-        view_data_.rect.size.width == 0 || view_data_.rect.size.height == 0)
-      return;  // Nothing to do.
-    if (rect.IsEmpty())
-      container_->invalidate();
-    else
-      container_->invalidateRect(rect);
-  }
-}
-
-void PluginInstance::ScrollRect(int dx, int dy, const gfx::Rect& rect) {
-  if (fullscreen_container_) {
-    fullscreen_container_->ScrollRect(dx, dy, rect);
-  } else {
-    if (full_frame_ && !IsViewAccelerated()) {
-      container_->scrollRect(dx, dy, rect);
-    } else {
-      // Can't do optimized scrolling since there could be other elements on top
-      // of us or the view renders via the accelerated compositor which is
-      // incompatible with the move and backfill scrolling model.
-      InvalidateRect(rect);
-    }
-  }
-}
-
-void PluginInstance::CommitBackingTexture() {
-  if (texture_layer_.get())
-    texture_layer_->SetNeedsDisplay();
-}
-
-void PluginInstance::InstanceCrashed() {
-  // Force free all resources and vars.
-  HostGlobals::Get()->InstanceCrashed(pp_instance());
-
-  // Free any associated graphics.
-  SetFullscreen(false);
-  FlashSetFullscreen(false, false);
-  // Unbind current 2D or 3D graphics context.
-  BindGraphics(pp_instance(), 0);
-  InvalidateRect(gfx::Rect());
-
-  delegate()->PluginCrashed(this);
-}
-
-static void SetGPUHistogram(const ::ppapi::Preferences& prefs,
-                            const std::vector<std::string>& arg_names,
-                            const std::vector<std::string>& arg_values) {
-  // Calculate a histogram to let us determine how likely people are to try to
-  // run Stage3D content on machines that have it blacklisted.
-#if defined(OS_WIN)
-  bool needs_gpu = false;
-  bool is_xp = base::win::GetVersion() <= base::win::VERSION_XP;
-
-  for (size_t i = 0; i < arg_names.size(); i++) {
-    if (arg_names[i] == "wmode") {
-      // In theory content other than Flash could have a "wmode" argument,
-      // but that's pretty unlikely.
-      if (arg_values[i] == "direct" || arg_values[i] == "gpu")
-        needs_gpu = true;
-      break;
-    }
-  }
-  // 0 : No 3D content and GPU is blacklisted
-  // 1 : No 3D content and GPU is not blacklisted
-  // 2 : 3D content but GPU is blacklisted
-  // 3 : 3D content and GPU is not blacklisted
-  // 4 : No 3D content and GPU is blacklisted on XP
-  // 5 : No 3D content and GPU is not blacklisted on XP
-  // 6 : 3D content but GPU is blacklisted on XP
-  // 7 : 3D content and GPU is not blacklisted on XP
-  UMA_HISTOGRAM_ENUMERATION("Flash.UsesGPU",
-      is_xp * 4 + needs_gpu * 2 + prefs.is_webgl_supported, 8);
-#endif
-}
-
-bool PluginInstance::Initialize(const std::vector<std::string>& arg_names,
-                                const std::vector<std::string>& arg_values,
-                                bool full_frame) {
-  message_channel_.reset(new MessageChannel(this));
-
-  full_frame_ = full_frame;
-
-  UpdateTouchEventRequest();
-  container_->setWantsWheelEvents(IsAcceptingWheelEvents());
-
-  SetGPUHistogram(delegate_->GetPreferences(), arg_names, arg_values);
-
-  argn_ = arg_names;
-  argv_ = arg_values;
-  scoped_ptr<const char*[]> argn_array(StringVectorToArgArray(argn_));
-  scoped_ptr<const char*[]> argv_array(StringVectorToArgArray(argv_));
-  bool success =  PP_ToBool(instance_interface_->DidCreate(pp_instance(),
-                                                           argn_.size(),
-                                                           argn_array.get(),
-                                                           argv_array.get()));
-  if (success)
-    message_channel_->StopQueueingJavaScriptMessages();
-  return success;
-}
-
-bool PluginInstance::HandleDocumentLoad(
-    const WebKit::WebURLResponse& response) {
-  DCHECK(!document_loader_);
-  if (!nacl_document_load_) {
-    if (module()->is_crashed()) {
-      // Don't create a resource for a crashed plugin.
-      container()->element().document().frame()->stopLoading();
-      return false;
-    }
-    delegate()->HandleDocumentLoad(this, response);
-    // If the load was not abandoned, document_loader_ will now be set. It's
-    // possible that the load was canceled by now and document_loader_ was
-    // already nulled out.
-  } else {
-    // The NaCl proxy isn't available, so save the response and record document
-    // load notifications for later replay.
-    nacl_document_response_ = response;
-    nacl_document_loader_.reset(new NaClDocumentLoader());
-    document_loader_ = nacl_document_loader_.get();
-  }
-  return true;
-}
-
-bool PluginInstance::SendCompositionEventToPlugin(PP_InputEvent_Type type,
-                                                  const base::string16& text) {
-  std::vector<WebKit::WebCompositionUnderline> empty;
-  return SendCompositionEventWithUnderlineInformationToPlugin(
-      type, text, empty, static_cast<int>(text.size()),
-      static_cast<int>(text.size()));
-}
-
-bool PluginInstance::SendCompositionEventWithUnderlineInformationToPlugin(
-    PP_InputEvent_Type type,
-    const base::string16& text,
-    const std::vector<WebKit::WebCompositionUnderline>& underlines,
-    int selection_start,
-    int selection_end) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-
-  if (!LoadInputEventInterface())
-    return false;
-
-  PP_InputEvent_Class event_class = PP_INPUTEVENT_CLASS_IME;
-  if (!(filtered_input_event_mask_ & event_class) &&
-      !(input_event_mask_ & event_class))
-    return false;
-
-  ::ppapi::InputEventData event;
-  event.event_type = type;
-  event.event_time_stamp = ::ppapi::TimeTicksToPPTimeTicks(
-      base::TimeTicks::Now());
-
-  // Convert UTF16 text to UTF8 with offset conversion.
-  std::vector<size_t> utf16_offsets;
-  utf16_offsets.push_back(selection_start);
-  utf16_offsets.push_back(selection_end);
-  for (size_t i = 0; i < underlines.size(); ++i) {
-    utf16_offsets.push_back(underlines[i].startOffset);
-    utf16_offsets.push_back(underlines[i].endOffset);
-  }
-  std::vector<size_t> utf8_offsets(utf16_offsets);
-  event.character_text = base::UTF16ToUTF8AndAdjustOffsets(text, &utf8_offsets);
-
-  // Set the converted selection range.
-  event.composition_selection_start = (utf8_offsets[0] == std::string::npos ?
-      event.character_text.size() : utf8_offsets[0]);
-  event.composition_selection_end = (utf8_offsets[1] == std::string::npos ?
-      event.character_text.size() : utf8_offsets[1]);
-
-  // Set the converted segmentation points.
-  // Be sure to add 0 and size(), and remove duplication or errors.
-  std::set<size_t> offset_set(utf8_offsets.begin()+2, utf8_offsets.end());
-  offset_set.insert(0);
-  offset_set.insert(event.character_text.size());
-  offset_set.erase(std::string::npos);
-  event.composition_segment_offsets.assign(offset_set.begin(),
-                                           offset_set.end());
-
-  // Set the composition target.
-  for (size_t i = 0; i < underlines.size(); ++i) {
-    if (underlines[i].thick) {
-      std::vector<uint32_t>::iterator it =
-          std::find(event.composition_segment_offsets.begin(),
-                    event.composition_segment_offsets.end(),
-                    utf8_offsets[2*i+2]);
-      if (it != event.composition_segment_offsets.end()) {
-        event.composition_target_segment =
-            it - event.composition_segment_offsets.begin();
-        break;
-      }
-    }
-  }
-
-  // Send the event.
-  bool handled = false;
-  if (filtered_input_event_mask_ & event_class)
-    event.is_filtered = true;
-  else
-    handled = true;  // Unfiltered events are assumed to be handled.
-  scoped_refptr<PPB_InputEvent_Shared> event_resource(
-      new PPB_InputEvent_Shared(::ppapi::OBJECT_IS_IMPL, pp_instance(), event));
-  handled |= PP_ToBool(plugin_input_event_interface_->HandleInputEvent(
-      pp_instance(), event_resource->pp_resource()));
-  return handled;
-}
-
-void PluginInstance::RequestInputEventsHelper(uint32_t event_classes) {
-  if (event_classes & PP_INPUTEVENT_CLASS_TOUCH)
-    UpdateTouchEventRequest();
-  if (event_classes & PP_INPUTEVENT_CLASS_WHEEL)
-    container_->setWantsWheelEvents(IsAcceptingWheelEvents());
-}
-
-bool PluginInstance::HandleCompositionStart(const base::string16& text) {
-  return SendCompositionEventToPlugin(PP_INPUTEVENT_TYPE_IME_COMPOSITION_START,
-                                      text);
-}
-
-bool PluginInstance::HandleCompositionUpdate(
-    const base::string16& text,
-    const std::vector<WebKit::WebCompositionUnderline>& underlines,
-    int selection_start,
-    int selection_end) {
-  return SendCompositionEventWithUnderlineInformationToPlugin(
-      PP_INPUTEVENT_TYPE_IME_COMPOSITION_UPDATE,
-      text, underlines, selection_start, selection_end);
-}
-
-bool PluginInstance::HandleCompositionEnd(const base::string16& text) {
-  return SendCompositionEventToPlugin(PP_INPUTEVENT_TYPE_IME_COMPOSITION_END,
-                                      text);
-}
-
-bool PluginInstance::HandleTextInput(const base::string16& text) {
-  return SendCompositionEventToPlugin(PP_INPUTEVENT_TYPE_IME_TEXT,
-                                      text);
-}
-
-void PluginInstance::GetSurroundingText(base::string16* text,
-                                        ui::Range* range) const {
-  std::vector<size_t> offsets;
-  offsets.push_back(selection_anchor_);
-  offsets.push_back(selection_caret_);
-  *text = base::UTF8ToUTF16AndAdjustOffsets(surrounding_text_, &offsets);
-  range->set_start(offsets[0] == base::string16::npos ? text->size()
-                                                      : offsets[0]);
-  range->set_end(offsets[1] == base::string16::npos ? text->size()
-                                                    : offsets[1]);
-}
-
-bool PluginInstance::IsPluginAcceptingCompositionEvents() const {
-  return (filtered_input_event_mask_ & PP_INPUTEVENT_CLASS_IME) ||
-      (input_event_mask_ & PP_INPUTEVENT_CLASS_IME);
-}
-
-gfx::Rect PluginInstance::GetCaretBounds() const {
-  if (!text_input_caret_set_) {
-    // If it is never set by the plugin, use the bottom left corner.
-    return gfx::Rect(view_data_.rect.point.x,
-                     view_data_.rect.point.y + view_data_.rect.size.height,
-                     0, 0);
-  }
-
-  // TODO(kinaba) Take CSS transformation into accont.
-  // TODO(kinaba) Take bounding_box into account. On some platforms, an
-  // "exclude rectangle" where candidate window must avoid the region can be
-  // passed to IME. Currently, we pass only the caret rectangle because
-  // it is the only information supported uniformly in Chromium.
-  gfx::Rect caret(text_input_caret_);
-  caret.Offset(view_data_.rect.point.x, view_data_.rect.point.y);
-  return caret;
-}
-
-bool PluginInstance::HandleInputEvent(const WebKit::WebInputEvent& event,
-                                      WebCursorInfo* cursor_info) {
-  TRACE_EVENT0("ppapi", "PluginInstance::HandleInputEvent");
-
-  if (WebInputEvent::isMouseEventType(event.type))
-    delegate()->DidReceiveMouseEvent(this);
-
-  // Don't dispatch input events to crashed plugins.
-  if (module()->is_crashed())
-    return false;
-
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-
-  bool rv = false;
-  if (LoadInputEventInterface()) {
-    PP_InputEvent_Class event_class = ClassifyInputEvent(event.type);
-    if (!event_class)
-      return false;
-
-    if ((filtered_input_event_mask_ & event_class) ||
-        (input_event_mask_ & event_class)) {
-      // Actually send the event.
-      std::vector< ::ppapi::InputEventData > events;
-      CreateInputEventData(event, &events);
-
-      // Allow the user gesture to be pending after the plugin handles the
-      // event. This allows out-of-process plugins to respond to the user
-      // gesture after processing has finished here.
-      if (WebUserGestureIndicator::isProcessingUserGesture()) {
-        pending_user_gesture_ =
-            ::ppapi::EventTimeToPPTimeTicks(event.timeStampSeconds);
-        pending_user_gesture_token_ =
-            WebUserGestureIndicator::currentUserGestureToken();
-        pending_user_gesture_token_.setOutOfProcess();
-      }
-
-      // Each input event may generate more than one PP_InputEvent.
-      for (size_t i = 0; i < events.size(); i++) {
-        if (filtered_input_event_mask_ & event_class)
-          events[i].is_filtered = true;
-        else
-          rv = true;  // Unfiltered events are assumed to be handled.
-        scoped_refptr<PPB_InputEvent_Shared> event_resource(
-            new PPB_InputEvent_Shared(::ppapi::OBJECT_IS_IMPL,
-                                      pp_instance(), events[i]));
-
-        rv |= PP_ToBool(plugin_input_event_interface_->HandleInputEvent(
-            pp_instance(), event_resource->pp_resource()));
-      }
-    }
-  }
-
-  if (cursor_)
-    *cursor_info = *cursor_;
-  return rv;
-}
-
-void PluginInstance::HandleMessage(PP_Var message) {
-  TRACE_EVENT0("ppapi", "PluginInstance::HandleMessage");
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadMessagingInterface())
-    return;
-  plugin_messaging_interface_->HandleMessage(pp_instance(), message);
-}
-
-PP_Var PluginInstance::GetInstanceObject() {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-
-  // If the plugin supports the private instance interface, try to retrieve its
-  // instance object.
-  if (LoadPrivateInterface())
-    return plugin_private_interface_->GetInstanceObject(pp_instance());
-  return PP_MakeUndefined();
-}
-
-void PluginInstance::ViewChanged(const gfx::Rect& position,
-                                 const gfx::Rect& clip,
-                                 const std::vector<gfx::Rect>& cut_outs_rects) {
-  // WebKit can give weird (x,y) positions for empty clip rects (since the
-  // position technically doesn't matter). But we want to make these
-  // consistent since this is given to the plugin, so force everything to 0
-  // in the "everything is clipped" case.
-  gfx::Rect new_clip;
-  if (!clip.IsEmpty())
-    new_clip = clip;
-
-  cut_outs_rects_ = cut_outs_rects;
-
-  view_data_.rect = PP_FromGfxRect(position);
-  view_data_.clip_rect = PP_FromGfxRect(clip);
-  view_data_.device_scale = container_->deviceScaleFactor();
-  view_data_.css_scale = container_->pageZoomFactor() *
-                         container_->pageScaleFactor();
-
-  if (desired_fullscreen_state_ || view_data_.is_fullscreen) {
-    WebElement element = container_->element();
-    WebDocument document = element.document();
-    bool is_fullscreen_element = (element == document.fullScreenElement());
-    if (!view_data_.is_fullscreen && desired_fullscreen_state_ &&
-        delegate()->IsInFullscreenMode() && is_fullscreen_element) {
-      // Entered fullscreen. Only possible via SetFullscreen().
-      view_data_.is_fullscreen = true;
-    } else if (view_data_.is_fullscreen && !is_fullscreen_element) {
-      // Exited fullscreen. Possible via SetFullscreen() or F11/link,
-      // so desired_fullscreen_state might be out-of-date.
-      desired_fullscreen_state_ = false;
-      view_data_.is_fullscreen = false;
-
-      // This operation will cause the plugin to re-layout which will send more
-      // DidChangeView updates. Schedule an asynchronous update and suppress
-      // notifications until that completes to avoid sending intermediate sizes
-      // to the plugins.
-      ScheduleAsyncDidChangeView();
-
-      // Reset the size attributes that we hacked to fill in the screen and
-      // retrigger ViewChanged. Make sure we don't forward duplicates of
-      // this view to the plugin.
-      ResetSizeAttributesAfterFullscreen();
-      return;
-    }
-  }
-
-  UpdateFlashFullscreenState(fullscreen_container_ != NULL);
-
-  SendDidChangeView();
-}
-
-void PluginInstance::SetWebKitFocus(bool has_focus) {
-  if (has_webkit_focus_ == has_focus)
-    return;
-
-  bool old_plugin_focus = PluginHasFocus();
-  has_webkit_focus_ = has_focus;
-  if (PluginHasFocus() != old_plugin_focus)
-    SendFocusChangeNotification();
-}
-
-void PluginInstance::SetContentAreaFocus(bool has_focus) {
-  if (has_content_area_focus_ == has_focus)
-    return;
-
-  bool old_plugin_focus = PluginHasFocus();
-  has_content_area_focus_ = has_focus;
-  if (PluginHasFocus() != old_plugin_focus)
-    SendFocusChangeNotification();
-}
-
-void PluginInstance::PageVisibilityChanged(bool is_visible) {
-  if (is_visible == view_data_.is_page_visible)
-    return;  // Nothing to do.
-  view_data_.is_page_visible = is_visible;
-
-  // If the initial DidChangeView notification hasn't been sent to the plugin,
-  // let it pass the visibility state for us, instead of sending a notification
-  // immediately. It is possible that PluginInstance::ViewChanged() hasn't been
-  // called for the first time. In that case, most of the fields in |view_data_|
-  // haven't been properly initialized.
-  if (sent_initial_did_change_view_)
-    SendDidChangeView();
-}
-
-void PluginInstance::ViewWillInitiatePaint() {
-  if (GetBoundGraphics2D())
-    GetBoundGraphics2D()->ViewWillInitiatePaint();
-  else if (bound_graphics_3d_.get())
-    bound_graphics_3d_->ViewWillInitiatePaint();
-}
-
-void PluginInstance::ViewInitiatedPaint() {
-  if (GetBoundGraphics2D())
-    GetBoundGraphics2D()->ViewInitiatedPaint();
-  else if (bound_graphics_3d_.get())
-    bound_graphics_3d_->ViewInitiatedPaint();
-}
-
-void PluginInstance::ViewFlushedPaint() {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (GetBoundGraphics2D())
-    GetBoundGraphics2D()->ViewFlushedPaint();
-  else if (bound_graphics_3d_.get())
-    bound_graphics_3d_->ViewFlushedPaint();
-}
-
-bool PluginInstance::GetBitmapForOptimizedPluginPaint(
-    const gfx::Rect& paint_bounds,
-    TransportDIB** dib,
-    gfx::Rect* location,
-    gfx::Rect* clip,
-    float* scale_factor) {
-  if (!always_on_top_)
-    return false;
-  if (!GetBoundGraphics2D() || !GetBoundGraphics2D()->IsAlwaysOpaque())
-    return false;
-
-  // We specifically want to compare against the area covered by the backing
-  // store when seeing if we cover the given paint bounds, since the backing
-  // store could be smaller than the declared plugin area.
-  PPB_ImageData_Impl* image_data = GetBoundGraphics2D()->ImageData();
-  // ImageDatas created by NaCl don't have a PlatformImage, so can't be
-  // optimized this way.
-  if (!image_data->PlatformImage())
-    return false;
-
-  gfx::Point plugin_origin = PP_ToGfxPoint(view_data_.rect.point);
-  gfx::Vector2d plugin_offset = plugin_origin.OffsetFromOrigin();
-  // Convert |paint_bounds| to be relative to the left-top corner of the plugin.
-  gfx::Rect relative_paint_bounds(paint_bounds);
-  relative_paint_bounds.Offset(-plugin_offset);
-
-  gfx::Rect pixel_plugin_backing_store_rect(
-      0, 0, image_data->width(), image_data->height());
-  float scale = GetBoundGraphics2D()->GetScale();
-  gfx::Rect plugin_backing_store_rect = gfx::ToEnclosedRect(
-      gfx::ScaleRect(pixel_plugin_backing_store_rect, scale));
-
-  gfx::Rect clip_page = PP_ToGfxRect(view_data_.clip_rect);
-  gfx::Rect plugin_paint_rect =
-      gfx::IntersectRects(plugin_backing_store_rect, clip_page);
-  if (!plugin_paint_rect.Contains(relative_paint_bounds))
-    return false;
-
-  // Don't do optimized painting if the area to paint intersects with the
-  // cut-out rects, otherwise we will paint over them.
-  for (std::vector<gfx::Rect>::const_iterator iter = cut_outs_rects_.begin();
-       iter != cut_outs_rects_.end(); ++iter) {
-    if (relative_paint_bounds.Intersects(*iter))
-      return false;
-  }
-
-  *dib = image_data->PlatformImage()->GetTransportDIB();
-  plugin_backing_store_rect.Offset(plugin_offset);
-  *location = plugin_backing_store_rect;
-  clip_page.Offset(plugin_offset);
-  *clip = clip_page;
-  // The plugin scale factor is inverted, e.g. for a device scale factor of 2x
-  // the plugin scale factor is 0.5.
-  *scale_factor = 1.0 / scale;
-  return true;
-}
-
-base::string16 PluginInstance::GetSelectedText(bool html) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadSelectionInterface())
-    return base::string16();
-
-  PP_Var rv = plugin_selection_interface_->GetSelectedText(pp_instance(),
-                                                           PP_FromBool(html));
-  StringVar* string = StringVar::FromPPVar(rv);
-  base::string16 selection;
-  if (string)
-    selection = UTF8ToUTF16(string->value());
-  // Release the ref the plugin transfered to us.
-  HostGlobals::Get()->GetVarTracker()->ReleaseVar(rv);
-  return selection;
-}
-
-base::string16 PluginInstance::GetLinkAtPosition(const gfx::Point& point) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadPdfInterface())
-    return base::string16();
-
-  PP_Point p;
-  p.x = point.x();
-  p.y = point.y();
-  PP_Var rv = plugin_pdf_interface_->GetLinkAtPosition(pp_instance(), p);
-  StringVar* string = StringVar::FromPPVar(rv);
-  base::string16 link;
-  if (string)
-    link = UTF8ToUTF16(string->value());
-  // Release the ref the plugin transfered to us.
-  PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(rv);
-  return link;
-}
-
-void PluginInstance::RequestSurroundingText(
-    size_t desired_number_of_characters) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadTextInputInterface())
-    return;
-  plugin_textinput_interface_->RequestSurroundingText(
-      pp_instance(), desired_number_of_characters);
-}
-
-void PluginInstance::Zoom(double factor, bool text_only) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadZoomInterface())
-    return;
-  plugin_zoom_interface_->Zoom(pp_instance(), factor, PP_FromBool(text_only));
-}
-
-bool PluginInstance::StartFind(const base::string16& search_text,
-                               bool case_sensitive,
-                               int identifier) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadFindInterface())
-    return false;
-  find_identifier_ = identifier;
-  return PP_ToBool(
-      plugin_find_interface_->StartFind(
-          pp_instance(),
-          UTF16ToUTF8(search_text.c_str()).c_str(),
-          PP_FromBool(case_sensitive)));
-}
-
-void PluginInstance::SelectFindResult(bool forward) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (LoadFindInterface())
-    plugin_find_interface_->SelectFindResult(pp_instance(),
-                                             PP_FromBool(forward));
-}
-
-void PluginInstance::StopFind() {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadFindInterface())
-    return;
-  find_identifier_ = -1;
-  plugin_find_interface_->StopFind(pp_instance());
-}
-
-bool PluginInstance::LoadFindInterface() {
-  if (!plugin_find_interface_) {
-    plugin_find_interface_ =
-        static_cast<const PPP_Find_Dev*>(module_->GetPluginInterface(
-            PPP_FIND_DEV_INTERFACE));
-  }
-
-  return !!plugin_find_interface_;
-}
-
-bool PluginInstance::LoadInputEventInterface() {
-  if (!checked_for_plugin_input_event_interface_) {
-    checked_for_plugin_input_event_interface_ = true;
-    plugin_input_event_interface_ =
-        static_cast<const PPP_InputEvent*>(module_->GetPluginInterface(
-            PPP_INPUT_EVENT_INTERFACE));
-  }
-  return !!plugin_input_event_interface_;
-}
-
-bool PluginInstance::LoadMessagingInterface() {
-  if (!checked_for_plugin_messaging_interface_) {
-    checked_for_plugin_messaging_interface_ = true;
-    plugin_messaging_interface_ =
-        static_cast<const PPP_Messaging*>(module_->GetPluginInterface(
-            PPP_MESSAGING_INTERFACE));
-  }
-  return !!plugin_messaging_interface_;
-}
-
-bool PluginInstance::LoadMouseLockInterface() {
-  if (!plugin_mouse_lock_interface_) {
-    plugin_mouse_lock_interface_ =
-        static_cast<const PPP_MouseLock*>(module_->GetPluginInterface(
-            PPP_MOUSELOCK_INTERFACE));
-  }
-
-  return !!plugin_mouse_lock_interface_;
-}
-
-bool PluginInstance::LoadPdfInterface() {
-  if (!checked_for_plugin_pdf_interface_) {
-    checked_for_plugin_pdf_interface_ = true;
-    plugin_pdf_interface_ =
-        static_cast<const PPP_Pdf_1*>(module_->GetPluginInterface(
-            PPP_PDF_INTERFACE_1));
-  }
-
-  return !!plugin_pdf_interface_;
-}
-
-bool PluginInstance::LoadPrintInterface() {
-  // Only check for the interface if the plugin has dev permission.
-  if (!module_->permissions().HasPermission(::ppapi::PERMISSION_DEV))
-    return false;
-  if (!plugin_print_interface_) {
-    plugin_print_interface_ = static_cast<const PPP_Printing_Dev*>(
-        module_->GetPluginInterface(PPP_PRINTING_DEV_INTERFACE));
-  }
-  return !!plugin_print_interface_;
-}
-
-bool PluginInstance::LoadPrivateInterface() {
-  // Only check for the interface if the plugin has private permission.
-  if (!module_->permissions().HasPermission(::ppapi::PERMISSION_PRIVATE))
-    return false;
-  if (!plugin_private_interface_) {
-    plugin_private_interface_ = static_cast<const PPP_Instance_Private*>(
-        module_->GetPluginInterface(PPP_INSTANCE_PRIVATE_INTERFACE));
-  }
-
-  return !!plugin_private_interface_;
-}
-
-bool PluginInstance::LoadSelectionInterface() {
-  if (!plugin_selection_interface_) {
-    plugin_selection_interface_ =
-        static_cast<const PPP_Selection_Dev*>(module_->GetPluginInterface(
-            PPP_SELECTION_DEV_INTERFACE));
-  }
-  return !!plugin_selection_interface_;
-}
-
-bool PluginInstance::LoadTextInputInterface() {
-  if (!plugin_textinput_interface_) {
-    plugin_textinput_interface_ =
-        static_cast<const PPP_TextInput_Dev*>(module_->GetPluginInterface(
-            PPP_TEXTINPUT_DEV_INTERFACE));
-  }
-
-  return !!plugin_textinput_interface_;
-}
-
-bool PluginInstance::LoadZoomInterface() {
-  if (!plugin_zoom_interface_) {
-    plugin_zoom_interface_ =
-        static_cast<const PPP_Zoom_Dev*>(module_->GetPluginInterface(
-            PPP_ZOOM_DEV_INTERFACE));
-  }
-
-  return !!plugin_zoom_interface_;
-}
-
-bool PluginInstance::PluginHasFocus() const {
-  return flash_fullscreen_ || (has_webkit_focus_ && has_content_area_focus_);
-}
-
-void PluginInstance::SendFocusChangeNotification() {
-  // This call can happen during PluginInstance destruction, because WebKit
-  // informs the plugin it's losing focus. See crbug.com/236574
-  if (!delegate_ || !instance_interface_)
-    return;
-  bool has_focus = PluginHasFocus();
-  delegate()->PluginFocusChanged(this, has_focus);
-  instance_interface_->DidChangeFocus(pp_instance(), PP_FromBool(has_focus));
-}
-
-void PluginInstance::UpdateTouchEventRequest() {
-  bool raw_touch = (filtered_input_event_mask_ & PP_INPUTEVENT_CLASS_TOUCH) ||
-                   (input_event_mask_ & PP_INPUTEVENT_CLASS_TOUCH);
-  container_->requestTouchEventType(raw_touch ?
-      WebKit::WebPluginContainer::TouchEventRequestTypeRaw :
-      WebKit::WebPluginContainer::TouchEventRequestTypeSynthesizedMouse);
-}
-
-bool PluginInstance::IsAcceptingWheelEvents() const {
-  return (filtered_input_event_mask_ & PP_INPUTEVENT_CLASS_WHEEL) ||
-      (input_event_mask_ & PP_INPUTEVENT_CLASS_WHEEL);
-}
-
-void PluginInstance::ScheduleAsyncDidChangeView() {
-  if (view_change_weak_ptr_factory_.HasWeakPtrs())
-    return;  // Already scheduled.
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&PluginInstance::SendAsyncDidChangeView,
-                 view_change_weak_ptr_factory_.GetWeakPtr()));
-}
-
-void PluginInstance::SendAsyncDidChangeView() {
-  // The bound callback that owns the weak pointer is still valid until after
-  // this function returns. SendDidChangeView checks HasWeakPtrs, so we need to
-  // invalidate them here.
-  // NOTE: If we ever want to have more than one pending callback, it should
-  // use a different factory, or we should have a different strategy here.
-  view_change_weak_ptr_factory_.InvalidateWeakPtrs();
-  SendDidChangeView();
-}
-
-void PluginInstance::SendDidChangeView() {
-  // Don't send DidChangeView to crashed plugins.
-  if (module()->is_crashed())
-    return;
-
-  if (view_change_weak_ptr_factory_.HasWeakPtrs() ||
-      (sent_initial_did_change_view_ &&
-       last_sent_view_data_.Equals(view_data_)))
-    return;  // Nothing to update.
-
-  const PP_Size& size = view_data_.rect.size;
-  // Avoid sending a notification with a huge rectangle.
-  if (size.width < 0  || size.width > kMaxPluginSideLength ||
-      size.height < 0 || size.height > kMaxPluginSideLength ||
-      // We know this won't overflow due to above checks.
-      static_cast<uint32>(size.width) * static_cast<uint32>(size.height) >
-          kMaxPluginSize) {
-    return;
-  }
-
-  sent_initial_did_change_view_ = true;
-  last_sent_view_data_ = view_data_;
-  ScopedPPResource resource(
-      ScopedPPResource::PassRef(),
-      (new PPB_View_Shared(::ppapi::OBJECT_IS_IMPL,
-                           pp_instance(), view_data_))->GetReference());
-
-  instance_interface_->DidChangeView(pp_instance(), resource,
-                                     &view_data_.rect,
-                                     &view_data_.clip_rect);
-}
-
-void PluginInstance::ReportGeometry() {
-  // If this call was delayed, we may have transitioned back to fullscreen in
-  // the mean time, so only report the geometry if we are actually in normal
-  // mode.
-  if (container_ && !fullscreen_container_ && !flash_fullscreen_)
-    container_->reportGeometry();
-}
-
-bool PluginInstance::GetPreferredPrintOutputFormat(
-    PP_PrintOutputFormat_Dev* format) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!LoadPrintInterface())
-    return false;
-  uint32_t supported_formats =
-      plugin_print_interface_->QuerySupportedFormats(pp_instance());
-  if (supported_formats & PP_PRINTOUTPUTFORMAT_PDF) {
-    *format = PP_PRINTOUTPUTFORMAT_PDF;
-    return true;
-  }
-  return false;
-}
-
-bool PluginInstance::SupportsPrintInterface() {
-  PP_PrintOutputFormat_Dev format;
-  return GetPreferredPrintOutputFormat(&format);
-}
-
-bool PluginInstance::IsPrintScalingDisabled() {
-  DCHECK(plugin_print_interface_);
-  if (!plugin_print_interface_)
-    return false;
-  return plugin_print_interface_->IsScalingDisabled(pp_instance()) == PP_TRUE;
-}
-
-int PluginInstance::PrintBegin(const WebPrintParams& print_params) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  PP_PrintOutputFormat_Dev format;
-  if (!GetPreferredPrintOutputFormat(&format)) {
-    // PrintBegin should not have been called since SupportsPrintInterface
-    // would have returned false;
-    NOTREACHED();
-    return 0;
-  }
-  int num_pages = 0;
-  PP_PrintSettings_Dev print_settings;
-  print_settings.printable_area = PP_FromGfxRect(print_params.printableArea);
-  print_settings.content_area = PP_FromGfxRect(print_params.printContentArea);
-  print_settings.paper_size = PP_FromGfxSize(print_params.paperSize);
-  print_settings.dpi = print_params.printerDPI;
-  print_settings.orientation = PP_PRINTORIENTATION_NORMAL;
-  print_settings.grayscale = PP_FALSE;
-  print_settings.print_scaling_option = static_cast<PP_PrintScalingOption_Dev>(
-      print_params.printScalingOption);
-  print_settings.format = format;
-  num_pages = plugin_print_interface_->Begin(pp_instance(),
-                                             &print_settings);
-  if (!num_pages)
-    return 0;
-  current_print_settings_ = print_settings;
-  canvas_.clear();
-  ranges_.clear();
-  return num_pages;
-}
-
-bool PluginInstance::PrintPage(int page_number, WebKit::WebCanvas* canvas) {
-#if defined(ENABLE_PRINTING)
-  DCHECK(plugin_print_interface_);
-  PP_PrintPageNumberRange_Dev page_range;
-  page_range.first_page_number = page_range.last_page_number = page_number;
-  // The canvas only has a metafile on it for print preview.
-  bool save_for_later =
-      (printing::MetafileSkiaWrapper::GetMetafileFromCanvas(*canvas) != NULL);
-#if defined(OS_MACOSX) || defined(OS_WIN)
-  save_for_later = save_for_later && skia::IsPreviewMetafile(*canvas);
-#endif
-  if (save_for_later) {
-    ranges_.push_back(page_range);
-    canvas_ = skia::SharePtr(canvas);
-    return true;
-  } else {
-    return PrintPageHelper(&page_range, 1, canvas);
-  }
-#else  // defined(ENABLED_PRINTING)
-  return false;
-#endif
-}
-
-bool PluginInstance::PrintPageHelper(PP_PrintPageNumberRange_Dev* page_ranges,
-                                     int num_ranges,
-                                     WebKit::WebCanvas* canvas) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  DCHECK(plugin_print_interface_);
-  if (!plugin_print_interface_)
-    return false;
-  PP_Resource print_output = plugin_print_interface_->PrintPages(
-      pp_instance(), page_ranges, num_ranges);
-  if (!print_output)
-    return false;
-
-  bool ret = false;
-
-  if (current_print_settings_.format == PP_PRINTOUTPUTFORMAT_PDF)
-    ret = PrintPDFOutput(print_output, canvas);
-
-  // Now we need to release the print output resource.
-  PluginModule::GetCore()->ReleaseResource(print_output);
-
-  return ret;
-}
-
-void PluginInstance::PrintEnd() {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-  if (!ranges_.empty())
-    PrintPageHelper(&(ranges_.front()), ranges_.size(), canvas_.get());
-  canvas_.clear();
-  ranges_.clear();
-
-  DCHECK(plugin_print_interface_);
-  if (plugin_print_interface_)
-    plugin_print_interface_->End(pp_instance());
-
-  memset(&current_print_settings_, 0, sizeof(current_print_settings_));
-#if defined(OS_MACOSX)
-  last_printed_page_ = NULL;
-#endif  // defined(OS_MACOSX)
-}
-
-bool PluginInstance::CanRotateView() {
-  if (!LoadPdfInterface())
-    return false;
-
-  return true;
-}
-
-void PluginInstance::SetBoundGraphics2DForTest(
-    PluginDelegate::PlatformGraphics2D* graphics) {
-  BindGraphics(pp_instance(), 0);  // Unbind any old stuff.
-  if (graphics) {
-    bound_graphics_2d_platform_ = graphics;
-    bound_graphics_2d_platform_->BindToInstance(this);
-  }
-}
-
-void PluginInstance::RotateView(WebPlugin::RotationType type) {
-  if (!LoadPdfInterface())
-    return;
-  PP_PrivatePageTransformType transform_type =
-      type == WebPlugin::RotationType90Clockwise ?
-      PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CW :
-      PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CCW;
-  plugin_pdf_interface_->Transform(pp_instance(), transform_type);
-  // NOTE: plugin instance may have been deleted.
-}
-
-bool PluginInstance::FlashIsFullscreenOrPending() {
-  return fullscreen_container_ != NULL;
-}
-
-bool PluginInstance::IsFullscreenOrPending() {
-  return desired_fullscreen_state_;
-}
-
-bool PluginInstance::SetFullscreen(bool fullscreen) {
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-
-  // Check whether we are trying to switch to the state we're already going
-  // to (i.e. if we're already switching to fullscreen but the fullscreen
-  // container isn't ready yet, don't do anything more).
-  if (fullscreen == IsFullscreenOrPending())
-    return false;
-
-  // Check whether we are trying to switch while the state is in transition.
-  // The 2nd request gets dropped while messing up the internal state, so
-  // disallow this.
-  if (view_data_.is_fullscreen != desired_fullscreen_state_)
-    return false;
-
-  if (fullscreen && !IsProcessingUserGesture())
-    return false;
-
-  VLOG(1) << "Setting fullscreen to " << (fullscreen ? "on" : "off");
-  desired_fullscreen_state_ = fullscreen;
-
-  if (fullscreen) {
-    // Create the user gesture in case we're processing one that's pending.
-    WebScopedUserGesture user_gesture(CurrentUserGestureToken());
-    // WebKit does not resize the plugin to fill the screen in fullscreen mode,
-    // so we will tweak plugin's attributes to support the expected behavior.
-    KeepSizeAttributesBeforeFullscreen();
-    SetSizeAttributesForFullscreen();
-    container_->element().requestFullScreen();
-  } else {
-    container_->element().document().cancelFullScreen();
-  }
-  return true;
-}
-
-void PluginInstance::FlashSetFullscreen(bool fullscreen, bool delay_report) {
-  TRACE_EVENT0("ppapi", "PluginInstance::FlashSetFullscreen");
-  // Keep a reference on the stack. See NOTE above.
-  scoped_refptr<PluginInstance> ref(this);
-
-  // We check whether we are trying to switch to the state we're already going
-  // to (i.e. if we're already switching to fullscreen but the fullscreen
-  // container isn't ready yet, don't do anything more).
-  if (fullscreen == FlashIsFullscreenOrPending())
-    return;
-
-  // Unbind current 2D or 3D graphics context.
-  VLOG(1) << "Setting fullscreen to " << (fullscreen ? "on" : "off");
-  if (fullscreen) {
-    DCHECK(!fullscreen_container_);
-    fullscreen_container_ = delegate_->CreateFullscreenContainer(this);
-    UpdateLayer();
-  } else {
-    DCHECK(fullscreen_container_);
-    fullscreen_container_->Destroy();
-    fullscreen_container_ = NULL;
-    UpdateFlashFullscreenState(false);
-    if (!delay_report) {
-      ReportGeometry();
-    } else {
-      base::MessageLoop::current()->PostTask(
-          FROM_HERE, base::Bind(&PluginInstance::ReportGeometry, this));
-    }
-  }
-}
-
-void PluginInstance::UpdateFlashFullscreenState(bool flash_fullscreen) {
-  bool is_mouselock_pending = TrackedCallback::IsPending(lock_mouse_callback_);
-
-  if (flash_fullscreen == flash_fullscreen_) {
-    // Manually clear callback when fullscreen fails with mouselock pending.
-    if (!flash_fullscreen && is_mouselock_pending)
-      lock_mouse_callback_->Run(PP_ERROR_FAILED);
-    return;
-  }
-
-  PPB_Graphics3D_Impl* graphics_3d  = bound_graphics_3d_.get();
-  if (graphics_3d)
-    UpdateLayer();
-
-  bool old_plugin_focus = PluginHasFocus();
-  flash_fullscreen_ = flash_fullscreen;
-  if (is_mouselock_pending && !delegate()->IsMouseLocked(this)) {
-    if (!IsProcessingUserGesture() &&
-        !module_->permissions().HasPermission(
-            ::ppapi::PERMISSION_BYPASS_USER_GESTURE)) {
-      lock_mouse_callback_->Run(PP_ERROR_NO_USER_GESTURE);
-    } else {
-      // Open a user gesture here so the Webkit user gesture checks will succeed
-      // for out-of-process plugins.
-      WebScopedUserGesture user_gesture(CurrentUserGestureToken());
-      if (!delegate()->LockMouse(this))
-        lock_mouse_callback_->Run(PP_ERROR_FAILED);
-    }
-  }
-
-  if (PluginHasFocus() != old_plugin_focus)
-    SendFocusChangeNotification();
-}
-
-int32_t PluginInstance::Navigate(const ::ppapi::URLRequestInfoData& request,
-                                 const char* target,
-                                 bool from_user_action) {
-  if (!container_)
-    return PP_ERROR_FAILED;
-
-  WebDocument document = container_->element().document();
-  WebFrame* frame = document.frame();
-  if (!frame)
-    return PP_ERROR_FAILED;
-
-  ::ppapi::URLRequestInfoData completed_request = request;
-
-  WebURLRequest web_request;
-  if (!CreateWebURLRequest(&completed_request, frame, &web_request))
-    return PP_ERROR_FAILED;
-  web_request.setFirstPartyForCookies(document.firstPartyForCookies());
-  web_request.setHasUserGesture(from_user_action);
-
-  GURL gurl(web_request.url());
-  if (gurl.SchemeIs("javascript")) {
-    // In imitation of the NPAPI implementation, only |target_frame == frame| is
-    // allowed for security reasons.
-    WebFrame* target_frame =
-        frame->view()->findFrameByName(WebString::fromUTF8(target), frame);
-    if (target_frame != frame)
-      return PP_ERROR_NOACCESS;
-
-    // TODO(viettrungluu): NPAPI sends the result back to the plugin -- do we
-    // need that?
-    WebString result = container_->executeScriptURL(gurl, from_user_action);
-    return result.isNull() ? PP_ERROR_FAILED : PP_OK;
-  }
-
-  // Only GETs and POSTs are supported.
-  if (web_request.httpMethod() != "GET" &&
-      web_request.httpMethod() != "POST")
-    return PP_ERROR_BADARGUMENT;
-
-  WebString target_str = WebString::fromUTF8(target);
-  container_->loadFrameRequest(web_request, target_str, false, NULL);
-  return PP_OK;
-}
-
-bool PluginInstance::IsRectTopmost(const gfx::Rect& rect) {
-  if (flash_fullscreen_)
-    return true;
-
-  return container_->isRectTopmost(rect);
-}
-
-bool PluginInstance::IsViewAccelerated() {
-  if (!container_)
-    return false;
-
-  WebDocument document = container_->element().document();
-  WebFrame* frame = document.frame();
-  if (!frame)
-    return false;
-  WebView* view = frame->view();
-  if (!view)
-    return false;
-
-  return view->isAcceleratedCompositingActive();
-}
-
-PluginDelegate::PlatformContext3D* PluginInstance::CreateContext3D() {
-  return delegate_->CreateContext3D();
-}
-
-bool PluginInstance::PrintPDFOutput(PP_Resource print_output,
-                                    WebKit::WebCanvas* canvas) {
-#if defined(ENABLE_PRINTING)
-  ::ppapi::thunk::EnterResourceNoLock<PPB_Buffer_API> enter(print_output, true);
-  if (enter.failed())
-    return false;
-
-  BufferAutoMapper mapper(enter.object());
-  if (!mapper.data() || !mapper.size()) {
-    NOTREACHED();
-    return false;
-  }
-#if defined(OS_WIN)
-  // For Windows, we need the PDF DLL to render the output PDF to a DC.
-  HMODULE pdf_module = GetModuleHandle(L"pdf.dll");
-  if (!pdf_module)
-    return false;
-  RenderPDFPageToDCProc render_proc =
-      reinterpret_cast<RenderPDFPageToDCProc>(
-          GetProcAddress(pdf_module, "RenderPDFPageToDC"));
-  if (!render_proc)
-    return false;
-#endif  // defined(OS_WIN)
-
-  bool ret = false;
-#if defined(OS_LINUX) || defined(OS_MACOSX)
-  // On Linux we just set the final bits in the native metafile
-  // (NativeMetafile and PreviewMetafile must have compatible formats,
-  // i.e. both PDF for this to work).
-  printing::Metafile* metafile =
-      printing::MetafileSkiaWrapper::GetMetafileFromCanvas(*canvas);
-  DCHECK(metafile != NULL);
-  if (metafile)
-    ret = metafile->InitFromData(mapper.data(), mapper.size());
-#elif defined(OS_WIN)
-  printing::Metafile* metafile =
-    printing::MetafileSkiaWrapper::GetMetafileFromCanvas(*canvas);
-  if (metafile) {
-    // We only have a metafile when doing print preview, so we just want to
-    // pass the PDF off to preview.
-    ret = metafile->InitFromData(mapper.data(), mapper.size());
-  } else {
-    // On Windows, we now need to render the PDF to the DC that backs the
-    // supplied canvas.
-    HDC dc = skia::BeginPlatformPaint(canvas);
-    DrawEmptyRectangle(dc);
-    gfx::Size size_in_pixels;
-    size_in_pixels.set_width(printing::ConvertUnit(
-        current_print_settings_.printable_area.size.width,
-        static_cast<int>(printing::kPointsPerInch),
-        current_print_settings_.dpi));
-    size_in_pixels.set_height(printing::ConvertUnit(
-        current_print_settings_.printable_area.size.height,
-        static_cast<int>(printing::kPointsPerInch),
-        current_print_settings_.dpi));
-    // We need to scale down DC to fit an entire page into DC available area.
-    // First, we'll try to use default scaling based on the 72dpi that is
-    // used in webkit for printing.
-    // If default scaling is not enough to fit the entire PDF without
-    // Current metafile is based on screen DC and have current screen size.
-    // Writing outside of those boundaries will result in the cut-off output.
-    // On metafiles (this is the case here), scaling down will still record
-    // original coordinates and we'll be able to print in full resolution.
-    // Before playback we'll need to counter the scaling up that will happen
-    // in the browser (printed_document_win.cc).
-    double dynamic_scale = gfx::CalculatePageScale(dc, size_in_pixels.width(),
-                                                   size_in_pixels.height());
-    double page_scale = static_cast<double>(printing::kPointsPerInch) /
-        static_cast<double>(current_print_settings_.dpi);
-
-    if (dynamic_scale < page_scale) {
-      page_scale = dynamic_scale;
-      printing::MetafileSkiaWrapper::SetCustomScaleOnCanvas(*canvas,
-                                                            page_scale);
-    }
-
-    gfx::ScaleDC(dc, page_scale);
-
-    ret = render_proc(static_cast<unsigned char*>(mapper.data()), mapper.size(),
-                      0, dc, current_print_settings_.dpi,
-                      current_print_settings_.dpi, 0, 0, size_in_pixels.width(),
-                      size_in_pixels.height(), true, false, true, true, true);
-    skia::EndPlatformPaint(canvas);
-  }
-#endif  // defined(OS_WIN)
-
-  return ret;
-#else  // defined(ENABLE_PRINTING)
-  return false;
-#endif
-}
-
-PluginDelegate::PlatformGraphics2D* PluginInstance::GetBoundGraphics2D() const {
-  return bound_graphics_2d_platform_;
-}
-
-static void IgnoreCallback(unsigned, bool) {}
-
-void PluginInstance::UpdateLayer() {
-  if (!container_)
-    return;
-
-  gpu::Mailbox mailbox;
-  if (bound_graphics_3d_.get()) {
-    PluginDelegate::PlatformContext3D* context =
-        bound_graphics_3d_->platform_context();
-    context->GetBackingMailbox(&mailbox);
-  }
-  bool want_layer = !mailbox.IsZero();
-
-  if (want_layer == !!texture_layer_.get() &&
-      layer_bound_to_fullscreen_ == !!fullscreen_container_)
-    return;
-
-  if (texture_layer_.get()) {
-    if (!layer_bound_to_fullscreen_)
-      container_->setWebLayer(NULL);
-    else if (fullscreen_container_)
-      fullscreen_container_->SetLayer(NULL);
-    web_layer_.reset();
-    texture_layer_ = NULL;
-  }
-  if (want_layer) {
-    DCHECK(bound_graphics_3d_.get());
-    texture_layer_ = cc::TextureLayer::CreateForMailbox(NULL);
-    web_layer_.reset(new webkit::WebLayerImpl(texture_layer_));
-    if (fullscreen_container_) {
-      fullscreen_container_->SetLayer(web_layer_.get());
-      // Ignore transparency in fullscreen, since that's what Flash always
-      // wants to do, and that lets it not recreate a context if
-      // wmode=transparent was specified.
-      texture_layer_->SetContentsOpaque(true);
-    } else {
-      container_->setWebLayer(web_layer_.get());
-      texture_layer_->SetContentsOpaque(bound_graphics_3d_->IsOpaque());
-    }
-    texture_layer_->SetTextureMailbox(
-        cc::TextureMailbox(mailbox, base::Bind(&IgnoreCallback), 0));
-  }
-  layer_bound_to_fullscreen_ = !!fullscreen_container_;
-}
-
-void PluginInstance::AddPluginObject(PluginObject* plugin_object) {
-  DCHECK(live_plugin_objects_.find(plugin_object) ==
-         live_plugin_objects_.end());
-  live_plugin_objects_.insert(plugin_object);
-}
-
-void PluginInstance::RemovePluginObject(PluginObject* plugin_object) {
-  // Don't actually verify that the object is in the set since during module
-  // deletion we'll be in the process of freeing them.
-  live_plugin_objects_.erase(plugin_object);
-}
-
-bool PluginInstance::IsFullPagePlugin() const {
-  WebFrame* frame = container()->element().document().frame();
-  return frame->view()->mainFrame()->document().isPluginDocument();
-}
-
-bool PluginInstance::IsProcessingUserGesture() {
-  PP_TimeTicks now =
-      ::ppapi::TimeTicksToPPTimeTicks(base::TimeTicks::Now());
-  // Give a lot of slack so tests won't be flaky.
-  const PP_TimeTicks kUserGestureDurationInSeconds = 10.0;
-  return pending_user_gesture_token_.hasGestures() &&
-         (now - pending_user_gesture_ < kUserGestureDurationInSeconds);
-}
-
-WebUserGestureToken PluginInstance::CurrentUserGestureToken() {
-  if (!IsProcessingUserGesture())
-    pending_user_gesture_token_ = WebUserGestureToken();
-  return pending_user_gesture_token_;
-}
-
-void PluginInstance::OnLockMouseACK(bool succeeded) {
-  if (TrackedCallback::IsPending(lock_mouse_callback_))
-    lock_mouse_callback_->Run(succeeded ? PP_OK : PP_ERROR_FAILED);
-}
-
-void PluginInstance::OnMouseLockLost() {
-  if (LoadMouseLockInterface())
-    plugin_mouse_lock_interface_->MouseLockLost(pp_instance());
-}
-
-void PluginInstance::HandleMouseLockedInputEvent(
-    const WebKit::WebMouseEvent& event) {
-  // |cursor_info| is ignored since it is hidden when the mouse is locked.
-  WebKit::WebCursorInfo cursor_info;
-  HandleInputEvent(event, &cursor_info);
-}
-
-void PluginInstance::SimulateInputEvent(const InputEventData& input_event) {
-  WebView* web_view = container()->element().document().frame()->view();
-  if (!web_view) {
-    NOTREACHED();
-    return;
-  }
-
-  bool handled = SimulateIMEEvent(input_event);
-  if (handled)
-    return;
-
-  std::vector<linked_ptr<WebInputEvent> > events =
-      CreateSimulatedWebInputEvents(
-          input_event,
-          view_data_.rect.point.x + view_data_.rect.size.width / 2,
-          view_data_.rect.point.y + view_data_.rect.size.height / 2);
-  for (std::vector<linked_ptr<WebInputEvent> >::iterator it = events.begin();
-      it != events.end(); ++it) {
-    web_view->handleInputEvent(*it->get());
-  }
-}
-
-bool PluginInstance::SimulateIMEEvent(const InputEventData& input_event) {
-  switch (input_event.event_type) {
-    case PP_INPUTEVENT_TYPE_IME_COMPOSITION_START:
-    case PP_INPUTEVENT_TYPE_IME_COMPOSITION_UPDATE:
-      SimulateImeSetCompositionEvent(input_event);
-      break;
-    case PP_INPUTEVENT_TYPE_IME_COMPOSITION_END:
-      DCHECK(input_event.character_text.empty());
-      SimulateImeSetCompositionEvent(input_event);
-      break;
-    case PP_INPUTEVENT_TYPE_IME_TEXT:
-      delegate()->SimulateImeConfirmComposition(
-          UTF8ToUTF16(input_event.character_text));
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-
-void PluginInstance::SimulateImeSetCompositionEvent(
-    const InputEventData& input_event) {
-  std::vector<size_t> offsets;
-  offsets.push_back(input_event.composition_selection_start);
-  offsets.push_back(input_event.composition_selection_end);
-  offsets.insert(offsets.end(),
-                 input_event.composition_segment_offsets.begin(),
-                 input_event.composition_segment_offsets.end());
-
-  base::string16 utf16_text =
-      base::UTF8ToUTF16AndAdjustOffsets(input_event.character_text, &offsets);
-
-  std::vector<WebKit::WebCompositionUnderline> underlines;
-  for (size_t i = 2; i + 1 < offsets.size(); ++i) {
-    WebKit::WebCompositionUnderline underline;
-    underline.startOffset = offsets[i];
-    underline.endOffset = offsets[i + 1];
-    if (input_event.composition_target_segment == static_cast<int32_t>(i - 2))
-      underline.thick = true;
-    underlines.push_back(underline);
-  }
-
-  delegate()->SimulateImeSetComposition(
-      utf16_text, underlines, offsets[0], offsets[1]);
-}
-
-ContentDecryptorDelegate* PluginInstance::GetContentDecryptorDelegate() {
-  if (content_decryptor_delegate_)
-    return content_decryptor_delegate_.get();
-
-  const PPP_ContentDecryptor_Private* plugin_decryption_interface =
-      static_cast<const PPP_ContentDecryptor_Private*>(
-          module_->GetPluginInterface(
-              PPP_CONTENTDECRYPTOR_PRIVATE_INTERFACE));
-  if (!plugin_decryption_interface)
-    return NULL;
-
-  content_decryptor_delegate_.reset(
-      new ContentDecryptorDelegate(pp_instance_, plugin_decryption_interface));
-  return content_decryptor_delegate_.get();
-}
-
-PP_Bool PluginInstance::BindGraphics(PP_Instance instance,
-                                     PP_Resource device) {
-  TRACE_EVENT0("ppapi", "PluginInstance::BindGraphics");
-  // The Graphics3D instance can't be destroyed until we call
-  // UpdateLayer().
-  scoped_refptr< ::ppapi::Resource> old_graphics = bound_graphics_3d_.get();
-  if (bound_graphics_3d_.get()) {
-    bound_graphics_3d_->BindToInstance(false);
-    bound_graphics_3d_ = NULL;
-  }
-  if (bound_graphics_2d_platform_) {
-    GetBoundGraphics2D()->BindToInstance(NULL);
-    bound_graphics_2d_platform_ = NULL;
-  }
-
-  // Special-case clearing the current device.
-  if (!device) {
-    UpdateLayer();
-    InvalidateRect(gfx::Rect());
-    return PP_TRUE;
-  }
-
-  // Refuse to bind if in transition to fullscreen with PPB_FlashFullscreen or
-  // to/from fullscreen with PPB_Fullscreen.
-  if ((fullscreen_container_ && !flash_fullscreen_) ||
-      desired_fullscreen_state_ != view_data_.is_fullscreen)
-    return PP_FALSE;
-
-  PluginDelegate::PlatformGraphics2D* graphics_2d =
-      delegate_->GetGraphics2D(this, device);
-  EnterResourceNoLock<PPB_Graphics3D_API> enter_3d(device, false);
-  PPB_Graphics3D_Impl* graphics_3d = enter_3d.succeeded() ?
-      static_cast<PPB_Graphics3D_Impl*>(enter_3d.object()) : NULL;
-
-  if (graphics_2d) {
-    if (graphics_2d->BindToInstance(this)) {
-      bound_graphics_2d_platform_ = graphics_2d;
-      UpdateLayer();
-      return PP_TRUE;
-    }
-  } else if (graphics_3d) {
-    // Make sure graphics can only be bound to the instance it is
-    // associated with.
-    if (graphics_3d->pp_instance() == pp_instance() &&
-        graphics_3d->BindToInstance(true)) {
-      bound_graphics_3d_ = graphics_3d;
-      UpdateLayer();
-      return PP_TRUE;
-    }
-  }
-
-  // The instance cannot be bound or the device is not a valid resource type.
-  return PP_FALSE;
-}
-
-PP_Bool PluginInstance::IsFullFrame(PP_Instance instance) {
-  return PP_FromBool(full_frame());
-}
-
-const ViewData* PluginInstance::GetViewData(PP_Instance instance) {
-  return &view_data_;
-}
-
-PP_Bool PluginInstance::FlashIsFullscreen(PP_Instance instance) {
-  return PP_FromBool(flash_fullscreen_);
-}
-
-PP_Var PluginInstance::GetWindowObject(PP_Instance instance) {
-  if (!container_)
-    return PP_MakeUndefined();
-
-  WebFrame* frame = container_->element().document().frame();
-  if (!frame)
-    return PP_MakeUndefined();
-
-  return NPObjectToPPVar(this, frame->windowObject());
-}
-
-PP_Var PluginInstance::GetOwnerElementObject(PP_Instance instance) {
-  if (!container_)
-    return PP_MakeUndefined();
-  return NPObjectToPPVar(this, container_->scriptableObjectForElement());
-}
-
-PP_Var PluginInstance::ExecuteScript(PP_Instance instance,
-                                     PP_Var script,
-                                     PP_Var* exception) {
-  // Executing the script may remove the plugin from the DOM, so we need to keep
-  // a reference to ourselves so that we can still process the result after the
-  // WebBindings::evaluate() below.
-  scoped_refptr<PluginInstance> ref(this);
-  TryCatch try_catch(exception);
-  if (try_catch.has_exception())
-    return PP_MakeUndefined();
-
-  // Convert the script into an inconvenient NPString object.
-  StringVar* script_string = StringVar::FromPPVar(script);
-  if (!script_string) {
-    try_catch.SetException("Script param to ExecuteScript must be a string.");
-    return PP_MakeUndefined();
-  }
-  NPString np_script;
-  np_script.UTF8Characters = script_string->value().c_str();
-  np_script.UTF8Length = script_string->value().length();
-
-  // Get the current frame to pass to the evaluate function.
-  WebFrame* frame = container_->element().document().frame();
-  if (!frame) {
-    try_catch.SetException("No frame to execute script in.");
-    return PP_MakeUndefined();
-  }
-
-  NPVariant result;
-  bool ok = false;
-  if (IsProcessingUserGesture()) {
-    WebKit::WebScopedUserGesture user_gesture(CurrentUserGestureToken());
-    ok = WebBindings::evaluate(NULL, frame->windowObject(), &np_script,
-                               &result);
-  } else {
-    ok = WebBindings::evaluate(NULL, frame->windowObject(), &np_script,
-                               &result);
-  }
-  if (!ok) {
-    // TryCatch doesn't catch the exceptions properly. Since this is only for
-    // a trusted API, just set to a general exception message.
-    try_catch.SetException("Exception caught");
-    WebBindings::releaseVariantValue(&result);
-    return PP_MakeUndefined();
-  }
-
-  PP_Var ret = NPVariantToPPVar(this, &result);
-  WebBindings::releaseVariantValue(&result);
-  return ret;
-}
-
-uint32_t PluginInstance::GetAudioHardwareOutputSampleRate(
-    PP_Instance instance) {
-  return delegate()->GetAudioHardwareOutputSampleRate();
-}
-
-uint32_t PluginInstance::GetAudioHardwareOutputBufferSize(
-    PP_Instance instance) {
-  return delegate()->GetAudioHardwareOutputBufferSize();
-}
-
-PP_Var PluginInstance::GetDefaultCharSet(PP_Instance instance) {
-  std::string encoding = delegate()->GetDefaultEncoding();
-  return StringVar::StringToPPVar(encoding);
-}
-
-// These PPB_ContentDecryptor_Private calls are responses to
-// PPP_ContentDecryptor_Private calls made on |content_decryptor_delegate_|.
-// Therefore, |content_decryptor_delegate_| must have been initialized when
-// the following methods are called.
-void PluginInstance::NeedKey(PP_Instance instance,
-                             PP_Var key_system_var,
-                             PP_Var session_id_var,
-                             PP_Var init_data_var) {
-  content_decryptor_delegate_->NeedKey(
-      key_system_var, session_id_var, init_data_var);
-}
-
-void PluginInstance::KeyAdded(PP_Instance instance,
-                              PP_Var key_system_var,
-                              PP_Var session_id_var) {
-  content_decryptor_delegate_->KeyAdded(key_system_var, session_id_var);
-}
-
-void PluginInstance::KeyMessage(PP_Instance instance,
-                                PP_Var key_system_var,
-                                PP_Var session_id_var,
-                                PP_Var message_var,
-                                PP_Var default_url_var) {
-  content_decryptor_delegate_->KeyMessage(
-      key_system_var, session_id_var, message_var, default_url_var);
-}
-
-void PluginInstance::KeyError(PP_Instance instance,
-                              PP_Var key_system_var,
-                              PP_Var session_id_var,
-                              int32_t media_error,
-                              int32_t system_code) {
-  content_decryptor_delegate_->KeyError(
-      key_system_var, session_id_var, media_error, system_code);
-}
-
-void PluginInstance::DeliverBlock(PP_Instance instance,
-                                  PP_Resource decrypted_block,
-                                  const PP_DecryptedBlockInfo* block_info) {
-  content_decryptor_delegate_->DeliverBlock(decrypted_block, block_info);
-}
-
-void PluginInstance::DecoderInitializeDone(PP_Instance instance,
-                                           PP_DecryptorStreamType decoder_type,
-                                           uint32_t request_id,
-                                           PP_Bool success) {
-  content_decryptor_delegate_->DecoderInitializeDone(
-      decoder_type, request_id, success);
-}
-
-void PluginInstance::DecoderDeinitializeDone(
-    PP_Instance instance,
-    PP_DecryptorStreamType decoder_type,
-    uint32_t request_id) {
-  content_decryptor_delegate_->DecoderDeinitializeDone(decoder_type,
-                                                       request_id);
-}
-
-void PluginInstance::DecoderResetDone(PP_Instance instance,
-                                      PP_DecryptorStreamType decoder_type,
-                                      uint32_t request_id) {
-  content_decryptor_delegate_->DecoderResetDone(decoder_type, request_id);
-}
-
-
-void PluginInstance::DeliverFrame(PP_Instance instance,
-                                  PP_Resource decrypted_frame,
-                                  const PP_DecryptedFrameInfo* frame_info) {
-  content_decryptor_delegate_->DeliverFrame(decrypted_frame, frame_info);
-}
-
-void PluginInstance::DeliverSamples(PP_Instance instance,
-                                    PP_Resource audio_frames,
-                                    const PP_DecryptedBlockInfo* block_info) {
-  content_decryptor_delegate_->DeliverSamples(audio_frames, block_info);
-}
-
-void PluginInstance::NumberOfFindResultsChanged(PP_Instance instance,
-                                                int32_t total,
-                                                PP_Bool final_result) {
-  DCHECK_NE(find_identifier_, -1);
-  delegate_->NumberOfFindResultsChanged(find_identifier_, total,
-                                        PP_ToBool(final_result));
-}
-
-void PluginInstance::SelectedFindResultChanged(PP_Instance instance,
-                                               int32_t index) {
-  DCHECK_NE(find_identifier_, -1);
-  delegate_->SelectedFindResultChanged(find_identifier_, index);
-}
-
-PP_Bool PluginInstance::IsFullscreen(PP_Instance instance) {
-  return PP_FromBool(view_data_.is_fullscreen);
-}
-
-PP_Bool PluginInstance::SetFullscreen(PP_Instance instance,
-                                      PP_Bool fullscreen) {
-  return PP_FromBool(SetFullscreen(PP_ToBool(fullscreen)));
-}
-
-PP_Bool PluginInstance::GetScreenSize(PP_Instance instance, PP_Size* size) {
-  gfx::Size screen_size = delegate()->GetScreenSize();
-  *size = PP_MakeSize(screen_size.width(), screen_size.height());
-  return PP_TRUE;
-}
-
-::ppapi::Resource* PluginInstance::GetSingletonResource(
-    PP_Instance instance,
-    ::ppapi::SingletonResourceID id) {
-  // Flash APIs and some others aren't implemented in-process.
-  switch (id) {
-    case ::ppapi::BROKER_SINGLETON_ID:
-    case ::ppapi::BROWSER_FONT_SINGLETON_ID:
-    case ::ppapi::CRX_FILESYSTEM_SINGLETON_ID:
-    case ::ppapi::EXTENSIONS_COMMON_SINGLETON_ID:
-    case ::ppapi::FLASH_CLIPBOARD_SINGLETON_ID:
-    case ::ppapi::FLASH_FILE_SINGLETON_ID:
-    case ::ppapi::FLASH_FULLSCREEN_SINGLETON_ID:
-    case ::ppapi::FLASH_SINGLETON_ID:
-    case ::ppapi::NETWORK_PROXY_SINGLETON_ID:
-    case ::ppapi::PDF_SINGLETON_ID:
-    case ::ppapi::TRUETYPE_FONT_SINGLETON_ID:
-      NOTIMPLEMENTED();
-      return NULL;
-    case ::ppapi::GAMEPAD_SINGLETON_ID:
-      return gamepad_impl_.get();
-  }
-
-  NOTREACHED();
-  return NULL;
-}
-
-int32_t PluginInstance::RequestInputEvents(PP_Instance instance,
-                                           uint32_t event_classes) {
-  input_event_mask_ |= event_classes;
-  filtered_input_event_mask_ &= ~(event_classes);
-  RequestInputEventsHelper(event_classes);
-  return ValidateRequestInputEvents(false, event_classes);
-}
-
-int32_t PluginInstance::RequestFilteringInputEvents(PP_Instance instance,
-                                                    uint32_t event_classes) {
-  filtered_input_event_mask_ |= event_classes;
-  input_event_mask_ &= ~(event_classes);
-  RequestInputEventsHelper(event_classes);
-  return ValidateRequestInputEvents(true, event_classes);
-}
-
-void PluginInstance::ClearInputEventRequest(PP_Instance instance,
-                                            uint32_t event_classes) {
-  input_event_mask_ &= ~(event_classes);
-  filtered_input_event_mask_ &= ~(event_classes);
-  RequestInputEventsHelper(event_classes);
-}
-
-void PluginInstance::ZoomChanged(PP_Instance instance, double factor) {
-  // We only want to tell the page to change its zoom if the whole page is the
-  // plugin.  If we're in an iframe, then don't do anything.
-  if (!IsFullPagePlugin())
-    return;
-  container()->zoomLevelChanged(WebView::zoomFactorToZoomLevel(factor));
-}
-
-void PluginInstance::ZoomLimitsChanged(PP_Instance instance,
-                                       double minimum_factor,
-                                       double maximium_factor) {
-  if (minimum_factor > maximium_factor) {
-    NOTREACHED();
-    return;
-  }
-  delegate()->ZoomLimitsChanged(minimum_factor, maximium_factor);
-}
-
-void PluginInstance::PostMessage(PP_Instance instance, PP_Var message) {
-  message_channel_->PostMessageToJavaScript(message);
-}
-
-PP_Bool PluginInstance::SetCursor(PP_Instance instance,
-                                  PP_MouseCursor_Type type,
-                                  PP_Resource image,
-                                  const PP_Point* hot_spot) {
-  if (!ValidateSetCursorParams(type, image, hot_spot))
-    return PP_FALSE;
-
-  if (type != PP_MOUSECURSOR_TYPE_CUSTOM) {
-    DoSetCursor(new WebCursorInfo(static_cast<WebCursorInfo::Type>(type)));
-    return PP_TRUE;
-  }
-
-  EnterResourceNoLock<PPB_ImageData_API> enter(image, true);
-  if (enter.failed())
-    return PP_FALSE;
-  PPB_ImageData_Impl* image_data =
-      static_cast<PPB_ImageData_Impl*>(enter.object());
-
-  ImageDataAutoMapper auto_mapper(image_data);
-  if (!auto_mapper.is_valid())
-    return PP_FALSE;
-
-  scoped_ptr<WebCursorInfo> custom_cursor(
-      new WebCursorInfo(WebCursorInfo::TypeCustom));
-  custom_cursor->hotSpot.x = hot_spot->x;
-  custom_cursor->hotSpot.y = hot_spot->y;
-
-  const SkBitmap* bitmap = image_data->GetMappedBitmap();
-  // Make a deep copy, so that the cursor remains valid even after the original
-  // image data gets freed.
-  if (!bitmap->copyTo(&custom_cursor->customImage.getSkBitmap(),
-                      bitmap->config())) {
-    return PP_FALSE;
-  }
-
-  DoSetCursor(custom_cursor.release());
-  return PP_TRUE;
-}
-
-int32_t PluginInstance::LockMouse(PP_Instance instance,
-                                  scoped_refptr<TrackedCallback> callback) {
-  if (TrackedCallback::IsPending(lock_mouse_callback_))
-    return PP_ERROR_INPROGRESS;
-
-  if (delegate()->IsMouseLocked(this))
-    return PP_OK;
-
-  if (!CanAccessMainFrame())
-    return PP_ERROR_NOACCESS;
-
-  if (!IsProcessingUserGesture())
-    return PP_ERROR_NO_USER_GESTURE;
-
-  // Attempt mouselock only if Flash isn't waiting on fullscreen, otherwise
-  // we wait and call LockMouse() in UpdateFlashFullscreenState().
-  if (!FlashIsFullscreenOrPending() || flash_fullscreen()) {
-    // Open a user gesture here so the Webkit user gesture checks will succeed
-    // for out-of-process plugins.
-    WebScopedUserGesture user_gesture(CurrentUserGestureToken());
-    if (!delegate()->LockMouse(this))
-      return PP_ERROR_FAILED;
-  }
-
-  // Either mouselock succeeded or a Flash fullscreen is pending.
-  lock_mouse_callback_ = callback;
-  return PP_OK_COMPLETIONPENDING;
-}
-
-void PluginInstance::UnlockMouse(PP_Instance instance) {
-  delegate()->UnlockMouse(this);
-}
-
-void PluginInstance::SetTextInputType(PP_Instance instance,
-                                      PP_TextInput_Type type) {
-  int itype = type;
-  if (itype < 0 || itype > ui::TEXT_INPUT_TYPE_URL)
-    itype = ui::TEXT_INPUT_TYPE_NONE;
-  text_input_type_ = static_cast<ui::TextInputType>(itype);
-  delegate()->PluginTextInputTypeChanged(this);
-}
-
-void PluginInstance::UpdateCaretPosition(PP_Instance instance,
-                                         const PP_Rect& caret,
-                                         const PP_Rect& bounding_box) {
-  text_input_caret_ = PP_ToGfxRect(caret);
-  text_input_caret_bounds_ = PP_ToGfxRect(bounding_box);
-  text_input_caret_set_ = true;
-  delegate()->PluginCaretPositionChanged(this);
-}
-
-void PluginInstance::CancelCompositionText(PP_Instance instance) {
-  delegate()->PluginRequestedCancelComposition(this);
-}
-
-void PluginInstance::SelectionChanged(PP_Instance instance) {
-  // TODO(kinaba): currently the browser always calls RequestSurroundingText.
-  // It can be optimized so that it won't call it back until the information
-  // is really needed.
-
-  // Avoid calling in nested context or else this will reenter the plugin. This
-  // uses a weak pointer rather than exploiting the fact that this class is
-  // refcounted because we don't actually want this operation to affect the
-  // lifetime of the instance.
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&PluginInstance::RequestSurroundingText,
-                 AsWeakPtr(),
-                 static_cast<size_t>(kExtraCharsForTextInput)));
-}
-
-void PluginInstance::UpdateSurroundingText(PP_Instance instance,
-                                           const char* text,
-                                           uint32_t caret,
-                                           uint32_t anchor) {
-  surrounding_text_ = text;
-  selection_caret_ = caret;
-  selection_anchor_ = anchor;
-  delegate()->PluginSelectionChanged(this);
-}
-
-PP_Var PluginInstance::ResolveRelativeToDocument(
-    PP_Instance instance,
-    PP_Var relative,
-    PP_URLComponents_Dev* components) {
-  StringVar* relative_string = StringVar::FromPPVar(relative);
-  if (!relative_string)
-    return PP_MakeNull();
-
-  WebElement plugin_element = container()->element();
-  GURL document_url = plugin_element.document().baseURL();
-  return ::ppapi::PPB_URLUtil_Shared::GenerateURLReturn(
-      document_url.Resolve(relative_string->value()),
-      components);
-}
-
-PP_Bool PluginInstance::DocumentCanRequest(PP_Instance instance, PP_Var url) {
-  StringVar* url_string = StringVar::FromPPVar(url);
-  if (!url_string)
-    return PP_FALSE;
-
-  WebKit::WebSecurityOrigin security_origin;
-  if (!SecurityOriginForInstance(instance, &security_origin))
-    return PP_FALSE;
-
-  GURL gurl(url_string->value());
-  if (!gurl.is_valid())
-    return PP_FALSE;
-
-  return BoolToPPBool(security_origin.canRequest(gurl));
-}
-
-PP_Bool PluginInstance::DocumentCanAccessDocument(PP_Instance instance,
-                                                  PP_Instance target) {
-  WebKit::WebSecurityOrigin our_origin;
-  if (!SecurityOriginForInstance(instance, &our_origin))
-    return PP_FALSE;
-
-  WebKit::WebSecurityOrigin target_origin;
-  if (!SecurityOriginForInstance(instance, &target_origin))
-    return PP_FALSE;
-
-  return BoolToPPBool(our_origin.canAccess(target_origin));
-}
-
-PP_Var PluginInstance::GetDocumentURL(PP_Instance instance,
-                                      PP_URLComponents_Dev* components) {
-  WebKit::WebDocument document = container()->element().document();
-  return ::ppapi::PPB_URLUtil_Shared::GenerateURLReturn(document.url(),
-                                                        components);
-}
-
-PP_Var PluginInstance::GetPluginInstanceURL(
-    PP_Instance instance,
-    PP_URLComponents_Dev* components) {
-  return ::ppapi::PPB_URLUtil_Shared::GenerateURLReturn(plugin_url_,
-                                                        components);
-}
-
-PP_ExternalPluginResult PluginInstance::ResetAsProxied(
-    scoped_refptr<PluginModule> module) {
-  // Save the original module and switch over to the new one now that this
-  // plugin is using the IPC-based proxy.
-  original_module_ = module_;
-  module_ = module;
-
-  // Don't send any messages to the plugin until DidCreate() has finished.
-  message_channel_->QueueJavaScriptMessages();
-
-  // For NaCl instances, remember the NaCl plugin instance interface, so we
-  // can shut it down by calling its DidDestroy in our Delete() method.
-  original_instance_interface_.reset(instance_interface_.release());
-
-  base::Callback<const void*(const char*)> get_plugin_interface_func =
-      base::Bind(&PluginModule::GetPluginInterface, module_.get());
-  PPP_Instance_Combined* ppp_instance_combined =
-      PPP_Instance_Combined::Create(get_plugin_interface_func);
-  if (!ppp_instance_combined) {
-    // The proxy must support at least one usable PPP_Instance interface.
-    // While this could be a failure to implement the interface in the NaCl
-    // module, it is more likely that the NaCl process has crashed. Either
-    // way, report that module initialization failed.
-    return PP_EXTERNAL_PLUGIN_ERROR_MODULE;
-  }
-
-  instance_interface_.reset(ppp_instance_combined);
-  // Clear all PPP interfaces we may have cached.
-  plugin_find_interface_ = NULL;
-  plugin_input_event_interface_ = NULL;
-  checked_for_plugin_input_event_interface_ = false;
-  plugin_messaging_interface_ = NULL;
-  checked_for_plugin_messaging_interface_ = false;
-  plugin_mouse_lock_interface_ = NULL;
-  plugin_pdf_interface_ = NULL;
-  checked_for_plugin_pdf_interface_ = false;
-  plugin_private_interface_ = NULL;
-  plugin_selection_interface_ = NULL;
-  plugin_textinput_interface_ = NULL;
-  plugin_zoom_interface_ = NULL;
-
-  // Re-send the DidCreate event via the proxy.
-  scoped_ptr<const char*[]> argn_array(StringVectorToArgArray(argn_));
-  scoped_ptr<const char*[]> argv_array(StringVectorToArgArray(argv_));
-  if (!instance_interface_->DidCreate(pp_instance(), argn_.size(),
-                                      argn_array.get(), argv_array.get()))
-    return PP_EXTERNAL_PLUGIN_ERROR_INSTANCE;
-  message_channel_->StopQueueingJavaScriptMessages();
-
-  // Clear sent_initial_did_change_view_ and cancel any pending DidChangeView
-  // event. This way, SendDidChangeView will send the "current" view
-  // immediately (before other events like HandleDocumentLoad).
-  sent_initial_did_change_view_ = false;
-  view_change_weak_ptr_factory_.InvalidateWeakPtrs();
-  SendDidChangeView();
-
-  DCHECK(nacl_document_load_);
-  nacl_document_load_ = false;
-  if (!nacl_document_response_.isNull()) {
-    document_loader_ = NULL;
-    // Pass the response to the new proxy.
-    HandleDocumentLoad(nacl_document_response_);
-    nacl_document_response_ = WebKit::WebURLResponse();
-    // Replay any document load events we've received to the real loader.
-    nacl_document_loader_->ReplayReceivedData(document_loader_);
-    nacl_document_loader_.reset(NULL);
-  }
-
-  return PP_EXTERNAL_PLUGIN_OK;
-}
-
-bool PluginInstance::IsValidInstanceOf(PluginModule* module) {
-  DCHECK(module);
-  return module == module_.get() ||
-         module == original_module_.get();
-}
-
-NPP PluginInstance::instanceNPP() {
-  return npp_.get();
-}
-
-v8::Isolate* PluginInstance::GetIsolate() const {
-  return isolate_;
-}
-
-PluginInstance* PluginInstance::Get(PP_Instance instance_id) {
-  return HostGlobals::Get()->GetInstance(instance_id);
-}
-
-::ppapi::VarTracker* PluginInstance::GetVarTracker() {
-  return HostGlobals::Get()->GetVarTracker();
-}
-
-PP_Resource PluginInstance::CreateExternalFileReference(
-    const base::FilePath& external_file_path) {
-  webkit::ppapi::PPB_FileRef_Impl* ref =
-      webkit::ppapi::PPB_FileRef_Impl::CreateExternal(
-          pp_instance(), external_file_path, "");
-  return ref->GetReference();
-}
-
-PP_Resource PluginInstance::CreateImage(gfx::ImageSkia* source_image,
-                                        float scale) {
-  ui::ScaleFactor scale_factor = ui::GetScaleFactorFromScale(scale);
-  gfx::ImageSkiaRep image_skia_rep = source_image->GetRepresentation(
-      scale_factor);
-
-  if (image_skia_rep.is_null() || image_skia_rep.scale_factor() != scale_factor)
-    return 0;
-
-  scoped_refptr<webkit::ppapi::PPB_ImageData_Impl> image_data(
-      new webkit::ppapi::PPB_ImageData_Impl(
-          pp_instance(),
-          webkit::ppapi::PPB_ImageData_Impl::PLATFORM));
-  if (!image_data->Init(
-          webkit::ppapi::PPB_ImageData_Impl::GetNativeImageDataFormat(),
-          image_skia_rep.pixel_width(),
-          image_skia_rep.pixel_height(),
-          false)) {
-    return 0;
-  }
-
-  webkit::ppapi::ImageDataAutoMapper mapper(image_data.get());
-  if (!mapper.is_valid())
-    return 0;
-
-  skia::PlatformCanvas* canvas = image_data->GetPlatformCanvas();
-  // Note: Do not SkBitmap::copyTo the canvas bitmap directly because it will
-  // ignore the allocated pixels in shared memory and re-allocate a new buffer.
-  canvas->writePixels(image_skia_rep.sk_bitmap(), 0, 0);
-
-  return image_data->GetReference();
-}
-
-base::FilePath PluginInstance::GetModulePath() {
-  return module_->path();
-}
-
-PP_ExternalPluginResult PluginInstance::SwitchToOutOfProcessProxy(
-    const base::FilePath& file_path,
-    ::ppapi::PpapiPermissions permissions,
-    const IPC::ChannelHandle& channel_handle,
-    base::ProcessId plugin_pid,
-    int plugin_child_id) {
-  // Create a new module for each instance of the external plugin that is using
-  // the IPC based out-of-process proxy. We can't use the existing module,
-  // because it is configured for the in-process plugin, and we must keep it
-  // that way to allow the page to create other instances.
-  scoped_refptr<webkit::ppapi::PluginModule> external_plugin_module(
-      module_->CreateModuleForExternalPluginInstance());
-
-  content::RendererPpapiHost* renderer_ppapi_host =
-      delegate_->CreateExternalPluginModule(
-          external_plugin_module,
-          file_path,
-          permissions,
-          channel_handle,
-          plugin_pid,
-          plugin_child_id);
-  if (!renderer_ppapi_host) {
-    DLOG(ERROR) << "CreateExternalPluginModule() failed";
-    return PP_EXTERNAL_PLUGIN_ERROR_MODULE;
-  }
-
-  // Finally, switch the instance to the proxy.
-  return external_plugin_module->InitAsProxiedExternalPlugin(this);
-}
-
-void PluginInstance::DoSetCursor(WebCursorInfo* cursor) {
-  cursor_.reset(cursor);
-  if (fullscreen_container_) {
-    fullscreen_container_->DidChangeCursor(*cursor);
-  } else {
-    delegate()->DidChangeCursor(this, *cursor);
-  }
-}
-
-bool PluginInstance::CanAccessMainFrame() const {
-  if (!container_)
-    return false;
-  WebKit::WebDocument containing_document = container_->element().document();
-
-  if (!containing_document.frame() ||
-      !containing_document.frame()->view() ||
-      !containing_document.frame()->view()->mainFrame()) {
-    return false;
-  }
-  WebKit::WebDocument main_document =
-      containing_document.frame()->view()->mainFrame()->document();
-
-  return containing_document.securityOrigin().canAccess(
-      main_document.securityOrigin());
-}
-
-void PluginInstance::KeepSizeAttributesBeforeFullscreen() {
-  WebElement element = container_->element();
-  width_before_fullscreen_ = element.getAttribute(WebString::fromUTF8(kWidth));
-  height_before_fullscreen_ =
-      element.getAttribute(WebString::fromUTF8(kHeight));
-  border_before_fullscreen_ =
-      element.getAttribute(WebString::fromUTF8(kBorder));
-  style_before_fullscreen_ = element.getAttribute(WebString::fromUTF8(kStyle));
-}
-
-void PluginInstance::SetSizeAttributesForFullscreen() {
-  screen_size_for_fullscreen_ = delegate()->GetScreenSize();
-  std::string width = StringPrintf("%d", screen_size_for_fullscreen_.width());
-  std::string height = StringPrintf("%d", screen_size_for_fullscreen_.height());
-
-  WebElement element = container_->element();
-  element.setAttribute(WebString::fromUTF8(kWidth), WebString::fromUTF8(width));
-  element.setAttribute(WebString::fromUTF8(kHeight),
-                       WebString::fromUTF8(height));
-  element.setAttribute(WebString::fromUTF8(kBorder), WebString::fromUTF8("0"));
-
-  // There should be no style settings that matter in fullscreen mode,
-  // so just replace them instead of appending.
-  // NOTE: "position: fixed" and "display: block" reset the plugin and
-  // using %% settings might not work without them (e.g. if the plugin is a
-  // child of a container element).
-  std::string style;
-  style += StringPrintf("width: %s !important; ", width.c_str());
-  style += StringPrintf("height: %s !important; ", height.c_str());
-  style += "margin: 0 !important; padding: 0 !important; border: 0 !important";
-  container_->element().setAttribute(kStyle, WebString::fromUTF8(style));
-}
-
-void PluginInstance::ResetSizeAttributesAfterFullscreen() {
-  screen_size_for_fullscreen_ = gfx::Size();
-  WebElement element = container_->element();
-  element.setAttribute(WebString::fromUTF8(kWidth), width_before_fullscreen_);
-  element.setAttribute(WebString::fromUTF8(kHeight), height_before_fullscreen_);
-  element.setAttribute(WebString::fromUTF8(kBorder), border_before_fullscreen_);
-  element.setAttribute(WebString::fromUTF8(kStyle), style_before_fullscreen_);
-}
-
-}  // namespace ppapi
-}  // namespace webkit