Remove ExtractImageRep from the browser frame header painting code.

ui/gfx/canvas.h

 // Copyright (c) 2012 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.
 
 #ifndef UI_GFX_CANVAS_H_
 #define UI_GFX_CANVAS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 174 matching lines @@
   // until a balanced call to Restore() is made.
   void Save();
 
   // As with Save(), except draws to a layer that is blended with the canvas
   // at the specified alpha once Restore() is called.
   // |layer_bounds| are the bounds of the layer relative to the current
   // transform.
   void SaveLayerAlpha(uint8_t alpha);
   void SaveLayerAlpha(uint8_t alpha, const Rect& layer_bounds);
 
+  // Like SaveLayerAlpha but draws the layer with an arbitrary set of
+  // PaintFlags once Restore() is called.
+  void SaveLayerWithFlags(const cc::PaintFlags& flags);
+
   // Restores the drawing state after a call to Save*(). It is an error to
   // call Restore() more times than Save*().
   void Restore();
 
   // Applies |rect| to the current clip using the specified region |op|.
   void ClipRect(const Rect& rect, SkClipOp op = SkClipOp::kIntersect);
   void ClipRect(const RectF& rect, SkClipOp op = SkClipOp::kIntersect);
 
   // Adds |path| to the current clip. |do_anti_alias| is true if the clip
   // should be antialiased.
@@ skipping 303 matching lines @@
   // but surface_ will be null.
   sk_sp<cc::PaintSurface> surface_;
   cc::PaintCanvas* canvas_;
 
   DISALLOW_COPY_AND_ASSIGN(Canvas);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_CANVAS_H_