[PageLoadMetrics] Keep track of Ad Sizes on Pages

chrome/browser/page_load_metrics/page_load_tracker.cc

 // Copyright 2016 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.
 
 #include "chrome/browser/page_load_metrics/page_load_tracker.h"
 
 #include <algorithm>
 #include <ostream>
 #include <string>
 #include <utility>
@@ skipping 441 matching lines @@
   user_initiated_info_.user_gesture = navigation_handle->HasUserGesture();
 
   INVOKE_AND_PRUNE_OBSERVERS(
       observers_, ShouldObserveMimeType,
       navigation_handle->GetWebContents()->GetContentsMimeType());
 
   INVOKE_AND_PRUNE_OBSERVERS(observers_, OnCommit, navigation_handle);
   LogAbortChainHistograms(navigation_handle);
 }
 
+void PageLoadTracker::CommitSubFrame(
+    content::NavigationHandle* navigation_handle) {
+  INVOKE_AND_PRUNE_OBSERVERS(observers_, OnCommitSubFrame, navigation_handle);
+}
+
 void PageLoadTracker::FailedProvisionalLoad(
     content::NavigationHandle* navigation_handle,
     base::TimeTicks failed_load_time) {
   DCHECK(!failed_provisional_load_info_);
   failed_provisional_load_info_.reset(new FailedProvisionalLoadInfo(
       failed_load_time - navigation_handle->NavigationStart(),
       navigation_handle->GetNetErrorCode()));
 }
 
 void PageLoadTracker::Redirect(content::NavigationHandle* navigation_handle) {
@@ skipping 261 matching lines @@
 }
 
 void PageLoadTracker::MediaStartedPlaying(
     const content::WebContentsObserver::MediaPlayerInfo& video_type,
     bool is_in_main_frame) {
   for (const auto& observer : observers_)
     observer->MediaStartedPlaying(video_type, is_in_main_frame);
 }
 
 }  // namespace page_load_metrics