aw: Ensure invalidation when pipeline is stalled

android_webview/browser/browser_view_renderer_client.h

Index: android_webview/browser/browser_view_renderer_client.h
diff --git a/android_webview/browser/browser_view_renderer_client.h b/android_webview/browser/browser_view_renderer_client.h
index 2fba4d2e4056c3ea22d9511b6335e2ce9b4a8a86..ebf5b7bc93e1e77673b2c62cae11a7bd621f8752 100644
--- a/android_webview/browser/browser_view_renderer_client.h
+++ b/android_webview/browser/browser_view_renderer_client.h
@@ -31,6 +31,9 @@ class BrowserViewRendererClient {
   // Called to update the parent draw constraints in browser view renderer.
   virtual void UpdateParentDrawConstraints() = 0;
 
+  // Called if commit is skipped due to pipeline stall.
+  virtual void DidSkipCommitFrame() = 0;
+
   // Called to get view's absolute location on the screen.
   virtual gfx::Point GetLocationOnScreen() = 0;