Adding DRP specfic UMA for FirstContentfulPaint

content/child/weburlresponse_extradata_impl.h

Index: content/child/weburlresponse_extradata_impl.h
diff --git a/content/child/weburlresponse_extradata_impl.h b/content/child/weburlresponse_extradata_impl.h
index 1c7a2441a71ed47558d53e2845d7885239403d03..467cc6f94d2fef29235014c96fd85559e279e953 100644
--- a/content/child/weburlresponse_extradata_impl.h
+++ b/content/child/weburlresponse_extradata_impl.h
@@ -83,27 +83,33 @@ class CONTENT_EXPORT WebURLResponseExtraDataImpl :
   }
 
   bool is_ftp_directory_listing() const { return is_ftp_directory_listing_; }
   void set_is_ftp_directory_listing(bool is_ftp_directory_listing) {
     is_ftp_directory_listing_ = is_ftp_directory_listing;
   }
 
   bool is_using_lofi() const { return is_using_lofi_; }
   void set_is_using_lofi(bool is_using_lofi) { is_using_lofi_ = is_using_lofi; }
 
+  bool used_data_reduction_proxy() const { return used_data_reduction_proxy_; }
+  void set_used_data_reduction_proxy(bool used_data_reduction_proxy) {
+    used_data_reduction_proxy_ = used_data_reduction_proxy;
+  }
+
  private:
   std::string npn_negotiated_protocol_;
   bool is_ftp_directory_listing_;
   bool was_fetched_via_proxy_;
   net::HostPortPair proxy_server_;
   bool was_fetched_via_spdy_;
   bool was_npn_negotiated_;
   net::HttpResponseInfo::ConnectionInfo connection_info_;
   bool was_alternate_protocol_available_;
   bool is_using_lofi_;
+  bool used_data_reduction_proxy_;

[tbansal1, 2016/03/10 22:49:47]

Is this (and the functions above) used somewhere?

[RyanSturm, 2016/03/14 21:00:46]

It's used in web_url_loader_impl.cc and render_frame_impl.cc; here is the
plumbing path to NavigationHandleImpl:

https://codereview.chromium.org/1721813002/diff/80001/content/browser/loader/...
ResourceResponse.head (ResourceResponseInfo)

https://codereview.chromium.org/1721813002/diff/80001/content/child/web_url_l...
ResourceResponseInfo -> WebURLResponseExtraDataImpl

https://codereview.chromium.org/1721813002/diff/80001/content/renderer/render...
WebURLResponseExtraDataImpl -> FrameHostMsg_DidCommitProvisionalLoad_Params 

https://codereview.chromium.org/1721813002/diff/80001/content/browser/frame_h...
FrameHostMsg_DidCommitProvisionalLoad_Params -> NavigationHandleImpl

 
   DISALLOW_COPY_AND_ASSIGN(WebURLResponseExtraDataImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBURLRESPONSE_EXTRADATA_IMPL_H_