DevTools: add the logging aspect into the PerformanceMonitor

third_party/WebKit/Source/core/frame/FrameView.cpp

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index 873fb8d31e5924eb1237dc395d07d2df7a2c25a1..0d5f1652eb6181d02e6f87606376918ce2760d01 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -50,6 +50,7 @@
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Location.h"
 #include "core/frame/PageScaleConstraintsSet.h"
+#include "core/frame/PerformanceMonitor.h"
 #include "core/frame/Settings.h"
 #include "core/frame/VisualViewport.h"
 #include "core/html/HTMLFrameElement.h"
@@ -1089,13 +1090,13 @@ void FrameView::layout() {
   DocumentLifecycle::Scope lifecycleScope(lifecycle(),
                                           DocumentLifecycle::LayoutClean);
 
+  Document* document = m_frame->document();
   TRACE_EVENT_BEGIN1("devtools.timeline", "Layout", "beginData",
                      InspectorLayoutEvent::beginData(this));
+  PerformanceMonitor::willUpdateLayout(document);
 
   performPreLayoutTasks();
 
-  Document* document = m_frame->document();
-
   // TODO(crbug.com/460956): The notion of a single root for layout is no longer
   // applicable. Remove or update this code.
   LayoutObject* rootForThisLayout = layoutView();
@@ -1236,6 +1237,7 @@ void FrameView::layout() {
   TRACE_EVENT_END1("devtools.timeline", "Layout", "endData",
                    InspectorLayoutEvent::endData(rootForThisLayout));
   InspectorInstrumentation::didUpdateLayout(m_frame.get());
+  PerformanceMonitor::didUpdateLayout(document);
 
   m_nestedLayoutCount--;
   if (m_nestedLayoutCount)