Move VISUAL_STATE promise to activation

content/renderer/gpu/frame_swap_message_queue.h

Index: content/renderer/gpu/frame_swap_message_queue.h
diff --git a/content/renderer/gpu/frame_swap_message_queue.h b/content/renderer/gpu/frame_swap_message_queue.h
index 51eb229ed7871ed8367a2b39c19c741d868ee28b..b12b4176ac2e7acf2ddccb8b816fe732ae7ce81b 100644
--- a/content/renderer/gpu/frame_swap_message_queue.h
+++ b/content/renderer/gpu/frame_swap_message_queue.h
@@ -52,14 +52,19 @@ class CONTENT_EXPORT FrameSwapMessageQueue
   // Returns true if there are no messages in the queue.
   bool Empty() const;
 
-  // Should be called when a successful swap occurs. The messages for that swap
-  // can be obtained by calling DrainMessages.
+  // Should be called when a successful activation occurs. The messages for
+  // that activation can be obtained by calling DrainMessages.
+  //
+  // |source_frame_number| frame number for which the activate occurred.
+  void DidActivate(int source_frame_number);
+
+  // Should be called when a successful swap occurs. The messages for that
+  // swap can be obtained by calling DrainMessages.
   //
   // |source_frame_number| frame number for which the swap occurred.
   void DidSwap(int source_frame_number);
 
-  // Should be called when we know a swap will not occur. This also means we
-  // won't be expecting a DrainMessages call.
+  // Should be called when we know a swap will not occur.
   //
   // |source_frame_number| frame number for which the swap will not occur.
   // |reason| reason for the which the swap will not occur.