Adding DRP specfic UMA for FirstContentfulPaint

content/browser/frame_host/navigation_handle_impl.cc

Index: content/browser/frame_host/navigation_handle_impl.cc
diff --git a/content/browser/frame_host/navigation_handle_impl.cc b/content/browser/frame_host/navigation_handle_impl.cc
index 316bf66638b0475740fb3bea1ff304abc14189a6..df5f3b40b78d7fdc089171c875cf7146c11135a9 100644
--- a/content/browser/frame_host/navigation_handle_impl.cc
+++ b/content/browser/frame_host/navigation_handle_impl.cc
@@ -246,20 +246,30 @@ NavigationHandleImpl::CallWillRedirectRequestForTesting(
   WillRedirectRequest(new_url, new_method_is_post, new_referrer_url,
                       new_is_external_protocol,
                       scoped_refptr<net::HttpResponseHeaders>(),
                       base::Bind(&UpdateThrottleCheckResult, &result));
 
   // Reset the callback to ensure it will not be called later.
   complete_callback_.Reset();
   return result;
 }
 
+bool NavigationHandleImpl::IsUsingLofi() const {
+  DCHECK(state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE);
+  return is_using_lofi_;
+}
+
+bool NavigationHandleImpl::UsedDataReductionProxy() const {
+  DCHECK(state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE);
+  return used_data_reduction_proxy_;
+}
+
 void NavigationHandleImpl::InitServiceWorkerHandle(
     ServiceWorkerContextWrapper* service_worker_context) {
   DCHECK(IsBrowserSideNavigationEnabled());
   service_worker_handle_.reset(
       new ServiceWorkerNavigationHandle(service_worker_context));
 }
 
 void NavigationHandleImpl::WillStartRequest(
     bool is_post,
     const Referrer& sanitized_referrer,
@@ -366,20 +376,22 @@ void NavigationHandleImpl::DidCommitNavigation(
     RenderFrameHostImpl* render_frame_host) {
   DCHECK(!render_frame_host_ || render_frame_host_ == render_frame_host);
   DCHECK_EQ(frame_tree_node_, render_frame_host->frame_tree_node());
   CHECK_EQ(url_, params.url);
 
   is_post_ = params.is_post;
   has_user_gesture_ = (params.gesture == NavigationGestureUser);
   transition_ = params.transition;
   render_frame_host_ = render_frame_host;
   is_same_page_ = same_page;
+  is_using_lofi_ = params.is_using_lofi;
+  used_data_reduction_proxy_ = params.used_data_reduction_proxy;
 
   state_ = net_error_code_ == net::OK ? DID_COMMIT : DID_COMMIT_ERROR_PAGE;
 }
 
 NavigationThrottle::ThrottleCheckResult
 NavigationHandleImpl::CheckWillStartRequest() {
   DCHECK(state_ == WILL_SEND_REQUEST || state_ == DEFERRING_START);
   DCHECK(state_ != WILL_SEND_REQUEST || next_index_ == 0);
   DCHECK(state_ != DEFERRING_START || next_index_ != 0);
   for (size_t i = next_index_; i < throttles_.size(); ++i) {