Change hittest node to be scrollbar's parent when hittest include a scrollbar

third_party/WebKit/Source/core/layout/HitTestResult.h

Index: third_party/WebKit/Source/core/layout/HitTestResult.h
diff --git a/third_party/WebKit/Source/core/layout/HitTestResult.h b/third_party/WebKit/Source/core/layout/HitTestResult.h
index fd1cef67a9b1e6e077a25594d55a441235b03145..222de18fe11ab13f33e87e1199d5120ae8a62a58 100644
--- a/third_party/WebKit/Source/core/layout/HitTestResult.h
+++ b/third_party/WebKit/Source/core/layout/HitTestResult.h
@@ -205,7 +205,9 @@ class CORE_EXPORT HitTestResult {
                              // m_innerNode's layoutObject.Allows us to
                              // efficiently determine where inside the
                              // layoutObject we hit on subsequent operations.
-  Member<Element> m_innerURLElement;
+  Member<Element> m_innerURLElement;  // m_innerURLElement saves the enclosing

[mustaq, 2017/04/04 18:56:57]

Nit: "For non-URL, this is the enclosing that triggers navigation."

Also, for sake of readability, please move all multi-line comments in this file
to above the member, e.g. as in Node.h.

+                                      // elem that triggers navigation for
+                                      // non-URL.
   Member<Scrollbar> m_scrollbar;
   bool m_isOverFrameViewBase;  // Returns true if we are over a FrameViewBase
                                // (and not in the border/padding area of a