use SkColorType instead of (deprecated) SkBitmap::Config for copyTo

cc/resources/ui_resource_bitmap.cc

Index: cc/resources/ui_resource_bitmap.cc
diff --git a/cc/resources/ui_resource_bitmap.cc b/cc/resources/ui_resource_bitmap.cc
index 562e13a234ce09070aefac08791d994959e5d6b8..18a2114fa9db95b1c5ebca3fb28619b7875c6d23 100644
--- a/cc/resources/ui_resource_bitmap.cc
+++ b/cc/resources/ui_resource_bitmap.cc
@@ -29,7 +29,7 @@ void UIResourceBitmap::Create(const skia::RefPtr<SkPixelRef>& pixel_ref,
 }
 
 UIResourceBitmap::UIResourceBitmap(const SkBitmap& skbitmap) {
-  DCHECK_EQ(skbitmap.config(), SkBitmap::kARGB_8888_Config);
+  DCHECK_EQ(skbitmap.colorType(), kPMColor_SkColorType);
   DCHECK_EQ(skbitmap.width(), skbitmap.rowBytesAsPixels());
   DCHECK(skbitmap.isImmutable());
 
@@ -41,6 +41,17 @@ UIResourceBitmap::UIResourceBitmap(const SkBitmap& skbitmap) {
   SetOpaque(skbitmap.isOpaque());
 }
 
+UIResourceBitmap::UIResourceBitmap(int width, int height, bool isOpaque) {
+  SkAlphaType alphaType = isOpaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
+  SkImageInfo info = SkImageInfo::MakeN32(width, height, alphaType);
+  skia::RefPtr<SkPixelRef> pixel_ref = skia::AdoptRef(
+      SkMallocPixelRef::NewAllocate(info, info.minRowBytes(), NULL));
+  Create(pixel_ref,
+         gfx::Size(info.width(), info.height()),
+         UIResourceBitmap::RGBA8);
+  SetOpaque(isOpaque);
+}
+
 UIResourceBitmap::UIResourceBitmap(const skia::RefPtr<SkPixelRef>& pixel_ref,
                                    gfx::Size size) {
   Create(pixel_ref, size, UIResourceBitmap::ETC1);