Change undefined SkGpuRenderTarget and SkGpuTexture forward declares to GrRenderTarget and GrTextur…

include/core/SkDevice.h

Index: include/core/SkDevice.h
diff --git a/include/core/SkDevice.h b/include/core/SkDevice.h
index 3d915d8b55dac86e31679ad938cbf000d4a60f15..162d882e852761201be6c216ff991af121b0fd07 100644
--- a/include/core/SkDevice.h
+++ b/include/core/SkDevice.h
@@ -23,8 +23,7 @@ class SkMatrix;
 class SkMetaData;
 class SkRegion;
 
-// This is an opaque class, not interpreted by skia
-class SkGpuRenderTarget;
+class GrRenderTarget;
 
 class SK_API SkDevice : public SkRefCnt {
 public:
@@ -160,7 +159,7 @@ public:
     /**
      * Return the device's associated gpu render target, or NULL.
      */
-    virtual SkGpuRenderTarget* accessRenderTarget() { return NULL; }
+    virtual GrRenderTarget* accessRenderTarget() { return NULL; }
 
 
     /**