Restart fullscreen video playback when switching back from background

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index b687069b74391233544b3b95bba8a9299f5fed21..938c73886521b0ea3ce0f281f21c3fda7ceb9766 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -1341,6 +1341,7 @@ bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTopControlsState,
                         OnUpdateTopControlsState)
     IPC_MESSAGE_HANDLER(ViewMsg_PauseVideo, OnPauseVideo)
+    IPC_MESSAGE_HANDLER(ViewMsg_ResumeFullscreenVideo, OnResumeFullscreenVideo)
 #elif defined(OS_MACOSX)
     IPC_MESSAGE_HANDLER(InputMsg_CopyToFindPboard, OnCopyToFindPboard)
     IPC_MESSAGE_HANDLER(ViewMsg_PluginImeCompositionCompleted,
@@ -1853,12 +1854,13 @@ void RenderViewImpl::OnUndoScrollFocusedEditableNodeIntoRect() {
 }
 
 void RenderViewImpl::OnPauseVideo() {
-  // Inform RendererMediaPlayerManager to release all video player resources.
-  // If something is in progress the resource will not be freed, it will
-  // only be freed once the tab is destroyed or if the user navigates away
-  // via WebMediaPlayerAndroid::Destroy.
+  media_player_manager_->SuspendFullscreenVideo();
   media_player_manager_->ReleaseVideoResources();
 }
+
+void RenderViewImpl::OnResumeFullscreenVideo() {
+  media_player_manager_->ResumeFullscreenVideo();
+}
 #endif
 
 ///////////////////////////////////////////////////////////////////////////////