Revert "Revert "add new signature so skia can rely on it (subclass of SkDevice)""

skia/ext/bitmap_platform_device_skia.cc

Index: skia/ext/bitmap_platform_device_skia.cc
diff --git a/skia/ext/bitmap_platform_device_skia.cc b/skia/ext/bitmap_platform_device_skia.cc
index 136706d7fbb49733338d23275b2aca53d3fcac12..87edc03218e7e7fa21e35e4f2e65d12ef712d82a 100644
--- a/skia/ext/bitmap_platform_device_skia.cc
+++ b/skia/ext/bitmap_platform_device_skia.cc
@@ -49,6 +49,13 @@ SkBaseDevice* BitmapPlatformDevice::onCreateCompatibleDevice(
                                       info.fInfo.isOpaque());
 }
 
+SkBaseDevice* BitmapPlatformDevice::onCreateDevice(const CreateInfo& info,
+                                                   const SkPaint*) {
+  SkASSERT(info.fInfo.colorType() == kN32_SkColorType);
+  return BitmapPlatformDevice::Create(info.fInfo.width(), info.fInfo.height(),
+                                      info.fInfo.isOpaque());
+}
+
 PlatformSurface BitmapPlatformDevice::BeginPlatformPaint() {
   // TODO(zhenghao): What should we return? The ptr to the address of the
   // pixels? Maybe this won't be called at all.