Add support for getting the 256x256 app icon on Windows.

ui/gfx/icon_util_unittest.cc

Index: ui/gfx/icon_util_unittest.cc
===================================================================
--- ui/gfx/icon_util_unittest.cc	(revision 176351)
+++ ui/gfx/icon_util_unittest.cc	(working copy)
@@ -12,6 +12,7 @@
 #include "ui/gfx/icon_util.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/size.h"
+#include "ui/test/ui_unittests_resource.h"
 
 namespace {
 
@@ -293,3 +294,21 @@
   EXPECT_EQ(256, bitmap.width());
   EXPECT_EQ(256, bitmap.height());
 }
+
+TEST_F(IconUtilTest, TestCreateSkBitmapFromIconResource48x48) {
+  HMODULE module = GetModuleHandle(NULL);
+  scoped_ptr<SkBitmap> bitmap(
+      IconUtil::CreateSkBitmapFromIconResource(module, IDR_MAINFRAME, 48));
+  ASSERT_TRUE(bitmap.get());
+  EXPECT_EQ(48, bitmap->width());
+  EXPECT_EQ(48, bitmap->height());
+}
+
+TEST_F(IconUtilTest, TestCreateSkBitmapFromIconResource256x256) {
+  HMODULE module = GetModuleHandle(NULL);
+  scoped_ptr<SkBitmap> bitmap(
+      IconUtil::CreateSkBitmapFromIconResource(module, IDR_MAINFRAME, 256));
+  ASSERT_TRUE(bitmap.get());
+  EXPECT_EQ(256, bitmap->width());
+  EXPECT_EQ(256, bitmap->height());
+}