Introduces ImageSkia::GetRepresentations() for Mac

ui/base/layout.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/base/layout.h"
 
 #include <cmath>
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 55 matching lines @@
 
   return has_touch_device;
 #else
   return false;
 #endif
 }
 
 const float kScaleFactorScales[] = {1.0, 2.0};
 const size_t kScaleFactorScalesLength = arraysize(kScaleFactorScales);
 
-#if defined(OS_MACOSX)
 std::vector<ui::ScaleFactor>& GetSupportedScaleFactorsInternal() {
   static std::vector<ui::ScaleFactor>* supported_scale_factors =
       new std::vector<ui::ScaleFactor>();
   if (supported_scale_factors->empty()) {
       supported_scale_factors->push_back(ui::SCALE_FACTOR_100P);
+#if defined(USE_ASH) || defined(OS_MACOSX)
       supported_scale_factors->push_back(ui::SCALE_FACTOR_200P);
+#endif
   }
   return *supported_scale_factors;
 }
-#endif  // OS_MACOSX
 
 }  // namespace
 
 namespace ui {
 
 // Note that this function should be extended to select
 // LAYOUT_TOUCH when appropriate on more platforms than just
 // Windows and Ash.
 DisplayLayout GetDisplayLayout() {
 #if defined(USE_ASH)
@@ skipping 19 matching lines @@
       smallest_diff = diff;
     }
   }
   return static_cast<ui::ScaleFactor>(closest_match);
 }
 
 float GetScaleFactorScale(ScaleFactor scale_factor) {
   return kScaleFactorScales[scale_factor];
 }
 
-#if defined(OS_MACOSX)
 std::vector<ScaleFactor> GetSupportedScaleFactors() {
   return GetSupportedScaleFactorsInternal();
 }
 
 namespace test {
 
 void SetSupportedScaleFactors(
     const std::vector<ui::ScaleFactor>& scale_factors) {
   std::vector<ui::ScaleFactor>& supported_scale_factors =
       GetSupportedScaleFactorsInternal();
   supported_scale_factors.clear();
 
   for (size_t i = 0; i < scale_factors.size(); ++i)
     supported_scale_factors.push_back(scale_factors[i]);
 }
 
 }  // namespace test
 
-#endif  // OS_MACOSX
-
 }  // namespace ui