Fix num_swapbuffers_complete_pending_ accounting.

Move the accounting into the context itself, which knows accurately when a swapbuffers is sent.
This fixes issues with the GPU process dying while an active tab is in the background.

BUG=chromium-os:16960
TEST=Go to youtube with Pepper Flash, switch to a different tab, kill GPU process, go to youtube tab, check that it still displays. Do it again twice.

Review URL: http://codereview.chromium.org/7313033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@92080 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 4 deletions

diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index e6c896f8..3bad78a 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -218,15 +218,17 @@ class RenderWidget : public IPC::Channel::Listener,
   virtual void DidFlushPaint() {}
 
   // Override and return true when the widget is rendered with a graphics
-  // context that supports asynchronous swapbuffers. When returning true,
-  // the subclass must call RenderWidget::OnSwapBuffersComplete() when
-  // swaps complete, and OnSwapBuffersAborted if the context is lost.
+  // context that supports asynchronous swapbuffers. When returning true, the
+  // subclass must call OnSwapBuffersPosted() when swap is posted,
+  // OnSwapBuffersComplete() when swaps complete, and OnSwapBuffersAborted if
+  // the context is lost.
   virtual bool SupportsAsynchronousSwapBuffers();
 
   // Notifies scheduler that the RenderWidget's subclass has finished or aborted
   // a swap buffers.
-  void OnSwapBuffersAborted();
+  void OnSwapBuffersPosted();
   void OnSwapBuffersComplete();
+  void OnSwapBuffersAborted();
 
   // Detects if a suitable opaque plugin covers the given paint bounds with no
   // compositing necessary.