Blink: Pass 'unobscured' rect to WebPlugins.

Source/core/frame/FrameView.h

Index: Source/core/frame/FrameView.h
diff --git a/Source/core/frame/FrameView.h b/Source/core/frame/FrameView.h
index 4056cc832a1a45f5b92b6810bf40a0e9dc0645a1..046471e86965038afbf14ef0dfa7f2214cfe5b1b 100644
--- a/Source/core/frame/FrameView.h
+++ b/Source/core/frame/FrameView.h
@@ -154,7 +154,8 @@ public:
 
     void adjustViewSize();
 
-    IntRect windowClipRectForFrameOwner(const HTMLFrameOwnerElement*) const;
+    // |clipRect| may not be nullptr. |unobscuredRect| is the clip rect that is not clipped to the root window. It may be nullptr.

[Julien - ping for review, 2015/03/27 21:26:07]

I assume this should read: |clipRect| must not be nullptr (you have an ASSERT
for that)

[tommycli, 2015/03/27 22:42:51]

Done.

+    void getClipRectsForFrameOwner(const HTMLFrameOwnerElement*, IntRect* clipRect, IntRect* unobscuredRect) const;
 
     float visibleContentScaleFactor() const { return m_visibleContentScaleFactor; }
     void setVisibleContentScaleFactor(float);