WIP Handle AwContents needing multiple live functors.

android_webview/browser/compositor_frame_producer.h

Index: android_webview/browser/compositor_frame_producer.h
diff --git a/android_webview/browser/compositor_frame_producer.h b/android_webview/browser/compositor_frame_producer.h
index b27b611a618ccb35730d643227549efa379ceed5..8defed52bb7b18c0cd6c327fcdaaa8dad376a757 100644
--- a/android_webview/browser/compositor_frame_producer.h
+++ b/android_webview/browser/compositor_frame_producer.h
@@ -11,8 +11,10 @@ class CompositorFrameConsumer;
 
 class CompositorFrameProducer {
  public:
-  virtual void OnParentDrawConstraintsUpdated() = 0;
-  virtual void OnCompositorFrameConsumerWillDestroy() = 0;
+  virtual void OnParentDrawConstraintsUpdated(
+      CompositorFrameConsumer* compositor_frame_consumer) = 0;
+  virtual void RemoveCompositorFrameConsumer(
+      CompositorFrameConsumer* compositor_frame_consumer) = 0;
 
  protected:
   virtual ~CompositorFrameProducer() {}