Move output surface fallback from cc to embedders

android_webview/browser/hardware_renderer.h

Index: android_webview/browser/hardware_renderer.h
diff --git a/android_webview/browser/hardware_renderer.h b/android_webview/browser/hardware_renderer.h
index f969a2c3bebe5f04832c19ee73aadb903cba21c2..7f0459d8a37427dbf70471aac099a1b4e2935f32 100644
--- a/android_webview/browser/hardware_renderer.h
+++ b/android_webview/browser/hardware_renderer.h
@@ -52,8 +52,9 @@ class HardwareRenderer : public cc::LayerTreeHostClient,
   virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
                                    float page_scale,
                                    float top_controls_delta) override {}
-  virtual void RequestNewOutputSurface(bool fallback) override;
+  virtual void RequestNewOutputSurface() override;
   virtual void DidInitializeOutputSurface() override {}
+  virtual void DidFailToInitializeOutputSurface() override;
   virtual void WillCommit() override {}
   virtual void DidCommit() override {}
   virtual void DidCommitAndDrawFrame() override {}