Use ScopedRTLFlipCanvas more pervasively for RTL flipping.

ui/gfx/scoped_canvas.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/scoped_canvas.h"
 
 #include "base/i18n/rtl.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace gfx {
 
 ScopedRTLFlipCanvas::ScopedRTLFlipCanvas(gfx::Canvas* canvas,
-                                         const gfx::Rect& rect)
+                                         int width,
+                                         bool flip)
     : canvas_(canvas) {
-  if (base::i18n::IsRTL()) {
-    canvas->Translate(gfx::Vector2d(rect.width(), 0));
+  if (flip && base::i18n::IsRTL()) {
+    canvas->Translate(gfx::Vector2d(width, 0));
     canvas->Scale(-1, 1);
   }
 }
 
 }  // namespace gfx