Propogate loading behavior data from Blink to content/

content/public/renderer/render_frame_observer.h

 // Copyright 2013 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 CONTENT_PUBLIC_RENDERER_RENDER_FRAME_OBSERVER_H_
 #define CONTENT_PUBLIC_RENDERER_RENDER_FRAME_OBSERVER_H_
 
 #include <stdint.h>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
+#include "third_party/WebKit/public/platform/WebLoadingData.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "third_party/WebKit/public/web/WebMeaningfulLayout.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 class WebFormElement;
 class WebFrame;
 class WebNode;
 class WebString;
 struct WebURLError;
@@ skipping 79 matching lines @@
   // state and you won't accidentally force new layouts.
   // The interestingness of layouts is explained in WebMeaningfulLayout.h.
   virtual void DidMeaningfulLayout(blink::WebMeaningfulLayout layout_type) {}
 
   // Called when a compositor frame has committed.
   virtual void DidCommitCompositorFrame() {}
 
   // Notifications when |PerformanceTiming| data becomes available
   virtual void DidChangePerformanceTiming() {}
 
+  // Notification when renderer uses an particular code path during a page
+  // load. This is used for metrics collection.

[Charlie Harrison, 2016/04/05 22:26:06]

"when the renderer"

[Charlie Harrison, 2016/04/06 14:24:51]

Done.

+  virtual void DidObserveLoadingBehavior(blink::WebLoadingData data) {}

[kinuko, 2016/04/06 05:54:14]

|data| sounds like a payload, let's consistently use 'behavior' throughout the
change.

WebLoadingData -> WebLoadingBehaviorFlag

data -> behavior

[Charlie Harrison, 2016/04/06 14:24:51]

Done.

+
   // Called when the focused node has changed to |node|.
   virtual void FocusedNodeChanged(const blink::WebNode& node) {}
 
   // IPC::Listener implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // IPC::Sender implementation.
   bool Send(IPC::Message* message) override;
 
   RenderFrame* render_frame() const;
@@ skipping 13 matching lines @@
   RenderFrame* render_frame_;
   // The routing ID of the associated RenderFrame.
   int routing_id_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_FRAME_OBSERVER_H_