Attribute Stuff to Frames with FrameBlamer

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

Index: third_party/WebKit/Source/core/frame/LocalFrame.cpp
diff --git a/third_party/WebKit/Source/core/frame/LocalFrame.cpp b/third_party/WebKit/Source/core/frame/LocalFrame.cpp
index 39c12736e097ac15d5204c3786a700af17525bf3..c8b5f3b327e96a5d3a24eb75ff94da97ed656bb7 100644
--- a/third_party/WebKit/Source/core/frame/LocalFrame.cpp
+++ b/third_party/WebKit/Source/core/frame/LocalFrame.cpp
@@ -827,4 +827,19 @@ FrameNavigationDisabler::~FrameNavigationDisabler()
     m_frame->enableNavigation();
 }
 
+ScopedFrameBlamer::ScopedFrameBlamer(LocalFrame* frame)
+    : m_frameBlameContext(frame ? frame->client()->frameBlameContext() : nullptr)
+{
+    if (m_frameBlameContext) {
+        DCHECK(isMainThread());
+        m_frameBlameContext->Enter();
+    }
+}
+
+ScopedFrameBlamer::~ScopedFrameBlamer()
+{
+    if (m_frameBlameContext)
+        m_frameBlameContext->Leave();
+}
+
 } // namespace blink