Add fixed raster scale use counter histograms.

blimp/client/feature/compositor/blimp_compositor.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BLIMP_CLIENT_FEATURE_COMPOSITOR_BLIMP_COMPOSITOR_H_
 #define BLIMP_CLIENT_FEATURE_COMPOSITOR_BLIMP_COMPOSITOR_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 131 matching lines @@
                            float page_scale,
                            float top_controls_delta) override;
   void RequestNewOutputSurface() override;
   void DidInitializeOutputSurface() override;
   void DidFailToInitializeOutputSurface() override;
   void WillCommit() override;
   void DidCommit() override;
   void DidCommitAndDrawFrame() override;
   void DidCompleteSwapBuffers() override;
   void DidCompletePageScaleAnimation() override;
+  void ReportFixedRasterScaleUseCounters(
+      bool has_blurry_content,
+      bool has_potential_performance_regression) override {}
 
   // RemoteProtoChannel implementation.
   void SetProtoReceiver(ProtoReceiver* receiver) override;
   void SendCompositorProto(const cc::proto::CompositorMessage& proto) override;
 
   // BlimpInputManagerClient implementation.
   void SendWebGestureEvent(
       const blink::WebGestureEvent& gesture_event) override;
 
   // Internal method to correctly set the visibility on the |host_|. It will
@@ skipping 44 matching lines @@
   // widget.
   std::unique_ptr<BlimpInputManager> input_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpCompositor);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_FEATURE_COMPOSITOR_BLIMP_COMPOSITOR_H_