Revert 224473 "Remove dependency on ui::ScaleFactor from ui/gfx"

trunk/src/chrome/browser/extensions/extension_uninstall_dialog.cc

Index: trunk/src/chrome/browser/extensions/extension_uninstall_dialog.cc
===================================================================
--- trunk/src/chrome/browser/extensions/extension_uninstall_dialog.cc	(revision 224497)
+++ trunk/src/chrome/browser/extensions/extension_uninstall_dialog.cc	(working copy)
@@ -21,14 +21,14 @@
 #include "grit/theme_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image.h"
-#include "ui/gfx/image/image_skia.h"
 
 namespace {
 
 // Returns pixel size under maximal scale factor for the icon whose device
 // independent size is |size_in_dip|
 int GetSizeForMaxScaleFactor(int size_in_dip) {
-  float max_scale_factor_scale = gfx::ImageSkia::GetMaxSupportedScale();
+  ui::ScaleFactor max_scale_factor = ui::GetMaxScaleFactor();
+  float max_scale_factor_scale = ui::GetScaleFactorScale(max_scale_factor);
 
   return static_cast<int>(size_in_dip * max_scale_factor_scale);
 }
@@ -39,8 +39,7 @@
   const gfx::ImageSkia& image = is_app ?
       extensions::IconsInfo::GetDefaultAppIcon() :
       extensions::IconsInfo::GetDefaultExtensionIcon();
-  return image.GetRepresentation(
-      gfx::ImageSkia::GetMaxSupportedScale()).sk_bitmap();
+  return image.GetRepresentation(ui::GetMaxScaleFactor()).sk_bitmap();
 }
 
 }  // namespace