Stop using deprecated factory API for SkDevice

skia/ext/bitmap_platform_device_mac.h

Index: skia/ext/bitmap_platform_device_mac.h
===================================================================
--- skia/ext/bitmap_platform_device_mac.h	(revision 91122)
+++ skia/ext/bitmap_platform_device_mac.h	(working copy)
@@ -11,14 +11,6 @@
 
 namespace skia {
 
-class BitmapPlatformDeviceFactory : public SkDeviceFactory {
- public:
-  virtual SkDevice* newDevice(SkCanvas* ignored, SkBitmap::Config config,
-                              int width, int height,
-                              bool isOpaque, bool isForLayer);
-};
-
-
 // A device is basically a wrapper around SkBitmap that provides a surface for
 // SkCanvas to draw into. Our device provides a surface CoreGraphics can also
 // write to. BitmapPlatformDevice creates a bitmap using
@@ -71,8 +63,8 @@
   // starts accessing pixel data.
   virtual void onAccessBitmap(SkBitmap*);
 
-  // Override SkDevice.
-  virtual SkDeviceFactory* onNewDeviceFactory();
+  virtual SkDevice* onCreateCompatibleDevice(SkBitmap::Config,  int width,
+                                             int height, bool isOpaque, Usage);
 
   // Data associated with this device, guaranteed non-null. We hold a reference
   // to this object.