Adding DRP specfic UMA for FirstContentfulPaint

content/public/browser/resource_dispatcher_host_delegate.h

 // Copyright (c) 2012 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_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/common/resource_type.h"
 #include "ui/base/page_transition_types.h"
 
 class GURL;
 template <class T> class ScopedVector;
 
 namespace IPC {
 class Sender;
 }
 
 namespace net {
 class AuthChallengeInfo;
 class URLRequest;
+class HostPortPair;

[tbansal1, 2016/03/07 18:05:05]

Alphabetical order.

[RyanSturm, 2016/03/08 19:47:43]

Done.

 }
 
 namespace content {
 
 class AppCacheService;
 class ResourceContext;
 class ResourceDispatcherHostLoginDelegate;
 class ResourceThrottle;
 struct Referrer;
 struct ResourceResponse;
@@ skipping 86 matching lines @@
                                    ResourceResponse* response);
 
   // Notification that a request has completed.
   virtual void RequestComplete(net::URLRequest* url_request);
 
   // Asks the embedder if Lo-Fi mode should be enabled for the given request. It
   // is only called for requests with an unspecified Lo-Fi value.
   virtual bool ShouldEnableLoFiMode(const net::URLRequest& url_request,
                                     content::ResourceContext* resource_context);
 
+  virtual bool UsedDataReductionProxy(const net::HostPortPair& proxy_server,

[tbansal1, 2016/03/07 18:05:05]

Please add function comments.

[RyanSturm, 2016/03/08 19:47:43]

Done.

+                                      ResourceContext* resource_context);
+
  protected:
   ResourceDispatcherHostDelegate();
   virtual ~ResourceDispatcherHostDelegate();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_