Uses and returns the fractional width in text eliding

ui/gfx/rect_f.h

Index: ui/gfx/rect_f.h
diff --git a/ui/gfx/rect_f.h b/ui/gfx/rect_f.h
index 09de529a6278eb46adeaf6b9bd5ba556b9b8a74c..42b9cfba0ad3992c3c35c7ff389facb6ff567366 100644
--- a/ui/gfx/rect_f.h
+++ b/ui/gfx/rect_f.h
@@ -12,6 +12,12 @@
 #include "ui/gfx/size_f.h"
 #include "ui/gfx/vector2d_f.h"
 
+#if defined(OS_IOS)
+#include <CoreGraphics/CoreGraphics.h>
+#elif defined(OS_MACOSX)
+#include <ApplicationServices/ApplicationServices.h>
+#endif
+
 namespace gfx {
 
 class InsetsF;
@@ -42,6 +48,11 @@ class GFX_EXPORT RectF
 
   ~RectF() {}
 
+#if defined(OS_MACOSX)
+  // Construct an equivalent CoreGraphics object.
+  CGRect ToCGRect() const;

[msw, 2013/10/01 02:42:48]

I don't see this used anywhere in your patch; remove it.

[jianli, 2013/10/01 18:56:50]

Indeed it is needed in autofill_popup_view_cocoa.mm and
autofill_popup_view_bridge.mm (not touched):
  NSRect frame = NSRectFromCGRect(controller_->popup_bounds().ToCGRect());

  NSRect rowBounds =
        NSRectFromCGRect(controller_->GetRowBounds(i).ToCGRect());

Now we return RectF for popup_bounds and GetRowBounds, so we need to port
ToCGRect support to RectF.

+#endif
+
   // Scales the rectangle by |scale|.
   void Scale(float scale) {
     Scale(scale, scale);