Update use of SkCanvas and SkDevice to match change in Skia

skia/ext/vector_platform_device_linux.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SKIA_EXT_VECTOR_PLATFORM_DEVICE_LINUX_H_
 #define SKIA_EXT_VECTOR_PLATFORM_DEVICE_LINUX_H_
 #pragma once
 
 #include "skia/ext/platform_device.h"
 #include "third_party/skia/include/core/SkMatrix.h"
 #include "third_party/skia/include/core/SkRegion.h"
 
 namespace skia {
 
+class SkVectorPlatformDeviceFactory : public SkRasterDeviceFactory {
+ public:
+  virtual SkDevice* newDevice(SkBitmap::Config config, int width, int height,
+                              bool isOpaque, bool isForLayer);
+
+  static SkDevice* CreateDevice(cairo_t* context, int width, int height,
+                                bool isOpaque);
+};
+
 // This device is basically a wrapper that provides a surface for SkCanvas
 // to draw into. It is basically an adaptor which converts skia APIs into
 // cooresponding Cairo APIs and outputs to a Cairo surface. Please NOTE that
 // since it is completely vectorial, the bitmap content in it is thus
 // meaningless.
 class VectorPlatformDevice : public PlatformDevice {
  public:
   // Factory function. Ownership of |context| is not transferred.
   static VectorPlatformDevice* create(PlatformSurface context,
                                       int width, int height);
   virtual ~VectorPlatformDevice();
 
+  virtual SkDeviceFactory* getDeviceFactory() {
+    return SkNEW(SkVectorPlatformDeviceFactory);
+  }
+
   virtual bool IsVectorial() { return true; }
   virtual PlatformSurface beginPlatformPaint() { return context_; }
 
   // We translate following skia APIs into corresponding Cairo APIs.
   virtual void drawBitmap(const SkDraw& draw, const SkBitmap& bitmap,
                           const SkMatrix& matrix, const SkPaint& paint);
   virtual void drawDevice(const SkDraw& draw, SkDevice*, int x, int y,
                           const SkPaint&);
   virtual void drawPaint(const SkDraw& draw, const SkPaint& paint);
   virtual void drawPath(const SkDraw& draw, const SkPath& path,
@@ skipping 72 matching lines @@
   PlatformSurface context_;
 
   // Copy & assign are not supported.
   VectorPlatformDevice(const VectorPlatformDevice&);
   const VectorPlatformDevice& operator=(const VectorPlatformDevice&);
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_VECTOR_PLATFORM_DEVICE_LINUX_H_