Adding DRP specfic UMA for FirstContentfulPaint

content/browser/frame_host/navigation_handle_impl.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 CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_
 
 #include "content/public/browser/navigation_handle.h"
 
 #include <stddef.h>
@@ skipping 93 matching lines @@
       bool is_post,
       const Referrer& sanitized_referrer,
       bool has_user_gesture,
       ui::PageTransition transition,
       bool is_external_protocol) override;
   NavigationThrottle::ThrottleCheckResult CallWillRedirectRequestForTesting(
       const GURL& new_url,
       bool new_method_is_post,
       const GURL& new_referrer_url,
       bool new_is_external_protocol) override;
+  bool IsUsingLofi() override;
+  bool WasFetchedViaDataReductionProxy() override;
 
   NavigatorDelegate* GetDelegate() const;
 
   // Returns the response headers for the request or nullptr if there are none.
   // This should only be accessed after a redirect was encountered or after the
   // navigation is ready to commit. The headers returned should not be modified,
   // as modifications will not be reflected in the network stack.
   const net::HttpResponseHeaders* GetResponseHeaders();
 
   void set_net_error_code(net::Error net_error_code) {
@@ skipping 118 matching lines @@
   bool has_user_gesture_;
   ui::PageTransition transition_;
   bool is_external_protocol_;
   net::Error net_error_code_;
   RenderFrameHostImpl* render_frame_host_;
   bool is_same_page_;
   const bool is_synchronous_;
   const bool is_srcdoc_;
   bool was_redirected_;
   scoped_refptr<net::HttpResponseHeaders> response_headers_;
-
   // The state the navigation is in.
   State state_;
 
   // Whether the navigation is in the middle of a transfer. Set to false when
   // the DidStartProvisionalLoad is received from the new renderer.
   bool is_transferring_;
 
   // The FrameTreeNode this navigation is happening in.
   FrameTreeNode* frame_tree_node_;
 
   // A list of Throttles registered for this navigation.
   ScopedVector<NavigationThrottle> throttles_;
 
   // The index of the next throttle to check.
   size_t next_index_;
 
   // The time this navigation started.
   const base::TimeTicks navigation_start_;
 
   // This callback will be run when all throttle checks have been performed.
   ThrottleChecksFinishedCallback complete_callback_;
 
   // PlzNavigate
   // Manages the lifetime of a pre-created ServiceWorkerProviderHost until a
   // corresponding ServiceWorkerNetworkProvider is created in the renderer.
   scoped_ptr<ServiceWorkerNavigationHandle> service_worker_handle_;
 
+  bool is_using_lofi_;

[bengr, 2016/02/26 22:53:57]

Add comments.

[RyanSturm, 2016/03/01 19:36:04]

Done.

+  bool was_fetched_via_data_reduction_proxy_;
+
   DISALLOW_COPY_AND_ASSIGN(NavigationHandleImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_HANDLE_IMPL_H_