Remove codes related to scaling in GraphicsLayer tree.

Source/core/page/Frame.cpp

Index: Source/core/page/Frame.cpp
diff --git a/Source/core/page/Frame.cpp b/Source/core/page/Frame.cpp
index d1c1c37204522de1d7b2d1dd15302e85201f522f..850cfdd9936f432fc21ee963c069fd0f5d32258e 100644
--- a/Source/core/page/Frame.cpp
+++ b/Source/core/page/Frame.cpp
@@ -656,10 +656,6 @@ void Frame::deviceOrPageScaleFactorChanged()
     for (RefPtr<Frame> child = tree()->firstChild(); child; child = child->tree()->nextSibling())
         child->deviceOrPageScaleFactorChanged();
 
-    RenderView* root = contentRenderer();
-    if (root && root->compositor())
-        root->compositor()->deviceOrPageScaleFactorChanged();
-
     m_page->chrome()->client()->deviceOrPageScaleFactorChanged();
 }