gfx: Remove Canvas::ExtractImageRep.

ui/gfx/canvas.cc

 // 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.
 
 #include "ui/gfx/canvas.h"
 
 #include <cmath>
 #include <limits>
 
 #include "base/i18n/rtl.h"
@@ skipping 85 matching lines @@
   float width = 0, height = 0;
   SizeStringFloat(text, font_list, &width, &height, 0, NO_ELLIPSIS);
   return width;
 }
 
 // static
 int Canvas::DefaultCanvasTextAlignment() {
   return base::i18n::IsRTL() ? TEXT_ALIGN_RIGHT : TEXT_ALIGN_LEFT;
 }
 
-ImageSkiaRep Canvas::ExtractImageRep() const {
-  DCHECK(bitmap_);
-  SkBitmap bitmap_copy;
-  // copyTo() will perform a deep copy, which is what we want.
-  bool result = bitmap_->copyTo(&bitmap_copy);
-  // This should succeed since the destination bitmap is empty to begin with.
-  // The only failure is an allocation failure, which we want to DCHECK anyway.
-  DCHECK(result);
-  return ImageSkiaRep(bitmap_copy, image_scale_);
-}
-
 void Canvas::DrawDashedRect(const RectF& rect, SkColor color) {
   if (rect.IsEmpty())
     return;
   // Create a 2D bitmap containing alternating on/off pixels - we do this
   // so that you never get two pixels of the same color around the edges
   // of the focus rect (this may mean that opposing edges of the rect may
   // have a dot pattern out of phase to each other).
   static SkColor last_color;
   static SkBitmap* dots = NULL;
   if (!dots || last_color != color) {
@@ skipping 474 matching lines @@
   bitmap_.emplace();
   bitmap_->allocPixels(info);
   // Ensure that the bitmap is zeroed, since the code expects that.
   memset(bitmap_->getPixels(), 0, bitmap_->getSafeSize());
 
   owned_canvas_ = cc::SkiaPaintCanvas(bitmap_.value());
   return &owned_canvas_.value();
 }
 
 }  // namespace gfx