Add profiling to WebContentsImpl::OnDidStopLoading.

content/browser/web_contents/web_contents_impl.cc

 // 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.
 
 #include "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/process/process.h"
+#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "base/trace_event/trace_event.h"
 #include "content/browser/accessibility/accessibility_mode_helper.h"
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
 #include "content/browser/browser_plugin/browser_plugin_embedder.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
@@ skipping 2907 matching lines @@
   rfh->frame_tree_node()->set_is_loading(true);
 
   // Notify the RenderFrameHostManager of the event.
   rfh->frame_tree_node()->render_manager()->OnDidStartLoading();
 
   loading_progresses_[render_frame_id] = kMinimumLoadingProgress;
   SendLoadProgressChanged();
 }
 
 void WebContentsImpl::OnDidStopLoading() {
+  // TODO(erikchen): Remove ScopedTracker below once crbug.com/465796 is
+  // fixed.
+  tracked_objects::ScopedTracker tracking_profile1(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "465796 WebContentsImpl::OnDidStopLoading::Start"));
+
   if (!HasValidFrameSource())
     return;
 
   RenderFrameHostImpl* rfh =
       static_cast<RenderFrameHostImpl*>(render_frame_message_source_);
   int64 render_frame_id = rfh->frame_tree_node()->frame_tree_node_id();
   rfh->frame_tree_node()->set_is_loading(false);
 
   if (loading_progresses_.find(render_frame_id) != loading_progresses_.end()) {
+    // TODO(erikchen): Remove ScopedTracker below once crbug.com/465796 is
+    // fixed.
+    tracked_objects::ScopedTracker tracking_profile2(
+        FROM_HERE_WITH_EXPLICIT_FUNCTION(
+            "465796 "
+            "WebContentsImpl::OnDidStopLoading::SendLoadProgressChanged"));
+
     // Load stopped while we were still tracking load.  Make sure we update
     // progress based on this frame's completion.
     loading_progresses_[render_frame_id] = 1.0;
     SendLoadProgressChanged();
     // Then we clean-up our states.
     if (loading_total_progress_ == 1.0)
       ResetLoadProgressState();
   }
 
+  // TODO(erikchen): Remove ScopedTracker below once crbug.com/465796 is
+  // fixed.
+  tracked_objects::ScopedTracker tracking_profile3(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "465796 WebContentsImpl::OnDidStopLoading::NotifyRenderManager"));
   // Notify the RenderFrameHostManager of the event.
   rfh->frame_tree_node()->render_manager()->OnDidStopLoading();
 
   // TODO(japhet): This should be a DCHECK, but the pdf plugin sometimes
   // calls DidStopLoading() without a matching DidStartLoading().
   if (loading_frames_in_progress_ == 0)
     return;
+
+  // TODO(erikchen): Remove ScopedTracker below once crbug.com/465796 is
+  // fixed.
+  tracked_objects::ScopedTracker tracking_profile4(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "465796 WebContentsImpl::OnDidStopLoading::PDFDidStopLoading"));
   --loading_frames_in_progress_;
   if (loading_frames_in_progress_ == 0)
     DidStopLoading(rfh);
 }
 
 void WebContentsImpl::OnDidChangeLoadProgress(double load_progress) {
   if (!HasValidFrameSource())
     return;
 
   RenderFrameHostImpl* rfh =
@@ skipping 1609 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content