Add stats collection for telemetry startup.warm.blank_page test.

components/html_viewer/html_frame_tree_manager.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 COMPONENTS_HTML_VIEWER_HTML_FRAME_TREE_MANAGER_H_
 #define COMPONENTS_HTML_VIEWER_HTML_FRAME_TREE_MANAGER_H_
 
 #include <map>
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "mandoline/tab/public/interfaces/frame_tree.mojom.h"
 
 namespace blink {
 class WebView;
 }
 
 namespace mojo {
-class ApplicationImpl;
 class View;
 }
 
 namespace html_viewer {
 
 class DocumentResourceWaiter;
 class GlobalState;
 class HTMLFrame;
 class HTMLFrameDelegate;
 
 // HTMLFrameTreeManager is responsible for managing the frames that comprise a
 // document. Some of the frames may be remote. HTMLFrameTreeManager updates its
 // state in response to changes from the FrameTreeServer, as well as changes
 // from the underlying frames. The frame tree has at least one local frame
 // that is backed by a mojo::View.
 class HTMLFrameTreeManager {
  public:
   // Creates a new HTMLFrame. The caller owns the return value and must call
   // Close() when done.
   static HTMLFrame* CreateFrameAndAttachToTree(
       GlobalState* global_state,
-      mojo::ApplicationImpl* app,
       mojo::View* view,
       scoped_ptr<DocumentResourceWaiter> resource_waiter,
       HTMLFrameDelegate* delegate);
 
   GlobalState* global_state() { return global_state_; }
 
   blink::WebView* GetWebView();
 
  private:
   friend class HTMLFrame;
@@ skipping 63 matching lines @@
   bool in_process_on_frame_removed_;
 
   base::WeakPtrFactory<HTMLFrameTreeManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HTMLFrameTreeManager);
 };
 
 }  // namespace html_viewer
 
 #endif  // COMPONENTS_HTML_VIEWER_HTML_FRAME_TREE_MANAGER_H_