Flip the default value of the flag to enable scaling in ImageSkiaOperations.

ui/gfx/image/image_skia_operations.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/image/image_skia_operations.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "skia/ext/image_operations.h"
 #include "ui/base/layout.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/canvas_image_source.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_rep.h"
 #include "ui/gfx/image/image_skia_source.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/rect_conversions.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/skbitmap_operations.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/gfx/switches.h"
 
 namespace gfx {
 namespace {
 
 bool ScalingEnabled() {
-  static bool scale_images = !CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kDisableScalingInImageSkiaOperations);
+  static bool scale_images = CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableScalingInImageSkiaOperations);
   return scale_images;
 }
 
 // Creates 2x scaled image of the give |source|.
 ImageSkiaRep Create2XImageSkiaRep(const ImageSkiaRep& source) {
   gfx::Size size(source.GetWidth() * 2.0f, source.GetHeight() * 2.0f);
 
   SkBitmap resized_bitmap;
   resized_bitmap.setConfig(SkBitmap::kARGB_8888_Config, size.width(), 
                            size.height());
@@ skipping 455 matching lines @@
       const ImageSkia& source,
       SkBitmapOperations::RotationAmount rotation) {
   return ImageSkia(new RotatedSource(source, rotation),
       SkBitmapOperations::ROTATION_180_CW == rotation ?
           source.size() :
           gfx::Size(source.height(), source.width()));
 
 }
 
 }  // namespace gfx