Update use of SkCanvas and SkDevice to match change in Skia

skia/ext/vector_platform_device_win.h

Index: skia/ext/vector_platform_device_win.h
diff --git a/skia/ext/vector_platform_device_win.h b/skia/ext/vector_platform_device_win.h
index ac8a8ec2032ab3a04b5cb21ed549e70d4f030a58..7ee7d54946e1594a59e5e93466fc9029cc715306 100644
--- a/skia/ext/vector_platform_device_win.h
+++ b/skia/ext/vector_platform_device_win.h
@@ -12,6 +12,14 @@
 
 namespace skia {
 
+class SkVectorPlatformDeviceFactory : public SkRasterDeviceFactory {
+ public:
+  virtual SkDevice* newDevice(SkBitmap::Config config, int width, int height,
+                              bool isOpaque, bool isForLayer);
+  static SkDevice* CreateDevice(int width, int height, bool isOpaque,
+                                HANDLE shared_section);
+};
+
 // A device is basically a wrapper around SkBitmap that provides a surface for
 // SkCanvas to draw into. This specific device is not not backed by a surface
 // and is thus unreadable. This is because the backend is completely vectorial.
@@ -24,6 +32,10 @@ class VectorPlatformDevice : public PlatformDevice {
   VectorPlatformDevice(HDC dc, const SkBitmap& bitmap);
   virtual ~VectorPlatformDevice();
 
+  virtual SkDeviceFactory* getDeviceFactory() {
+    return SkNEW(SkVectorPlatformDeviceFactory);
+  }
+
   virtual HDC getBitmapDC() {
     return hdc_;
   }