Introduces ImageSkia::GetRepresentations() for Mac

ui/base/layout.cc

Index: ui/base/layout.cc
diff --git a/ui/base/layout.cc b/ui/base/layout.cc
index ac4ee5502020a47dd3f9010eaf4d9ae4ae6b47af..2cf09db514665e0e0044a4b2d0a4f5fb158f4b02 100644
--- a/ui/base/layout.cc
+++ b/ui/base/layout.cc
@@ -73,17 +73,17 @@ bool UseTouchOptimizedUI() {
 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
 
@@ -123,7 +123,6 @@ float GetScaleFactorScale(ScaleFactor scale_factor) {
   return kScaleFactorScales[scale_factor];
 }
 
-#if defined(OS_MACOSX)
 std::vector<ScaleFactor> GetSupportedScaleFactors() {
   return GetSupportedScaleFactorsInternal();
 }
@@ -142,6 +141,4 @@ void SetSupportedScaleFactors(
 
 }  // namespace test
 
-#endif  // OS_MACOSX
-
 }  // namespace ui