Add use counter for chrome.loadTimes

third_party/WebKit/public/web/WebLocalFrame.h

 // Copyright 2014 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 WebLocalFrame_h
 #define WebLocalFrame_h
 
 #include "WebCompositionUnderline.h"
 #include "WebFrame.h"
 #include "WebFrameLoadType.h"
@@ skipping 404 matching lines @@
     virtual WebFrameWidget* frameWidget() const = 0;
 
     // Copy to the clipboard the image located at a particular point in visual
     // viewport coordinates.
     virtual void copyImageAt(const WebPoint&) = 0;
 
     // Save as the image located at a particular point in visual viewport
     // coordinates.
     virtual void saveImageAt(const WebPoint&) = 0;
 
+    // TEMP: Usage count for chrome.loadtimes deprecation.
+    // This will be removed following the deprecation.
+    virtual void usageCountChromeLoadTimes(const WebString& metric) = 0;
+
 protected:
     explicit WebLocalFrame(WebTreeScopeType scope) : WebFrame(scope) { }
 
     // Inherited from WebFrame, but intentionally hidden: it never makes sense
     // to call these on a WebLocalFrame.
     bool isWebLocalFrame() const override = 0;
     WebLocalFrame* toWebLocalFrame() override = 0;
     bool isWebRemoteFrame() const override = 0;
     WebRemoteFrame* toWebRemoteFrame() override = 0;
 };
 
 } // namespace blink
 
 #endif // WebLocalFrame_h