Rename onCreateDevice -> onCreateCompatibleDevice

include/core/SkDevice.h

Index: include/core/SkDevice.h
diff --git a/include/core/SkDevice.h b/include/core/SkDevice.h
index 4a61321ff76203b2e2264de518d6bd1cadefa753..95a6600b636a067c3d769970ab4e2ab7b7c27170 100644
--- a/include/core/SkDevice.h
+++ b/include/core/SkDevice.h
@@ -236,7 +236,7 @@ protected:
     virtual void drawPatch(const SkDraw&, const SkPoint cubics[12], const SkColor colors[4],
                            const SkPoint texCoords[4], SkXfermode* xmode, const SkPaint& paint);
     /** The SkDevice passed will be an SkDevice which was returned by a call to
-        onCreateDevice on this device with kSaveLayer_Usage.
+        onCreateCompatibleDevice on this device with kSaveLayer_Usage.
      */
     virtual void drawDevice(const SkDraw&, SkBaseDevice*, int x, int y,
                             const SkPaint&) = 0;
@@ -340,6 +340,16 @@ protected:
 
     void setPixelGeometry(SkPixelGeometry geo);
 
+    struct CreateInfo {
+        CreateInfo(const SkImageInfo& info, Usage usage) : fInfo(info), fUsage(usage) {}
+
+        SkImageInfo fInfo;
+        Usage       fUsage;
+    };
+    virtual SkBaseDevice* onCreateCompatibleDevice(const CreateInfo& cinfo) {
+        return NULL;
+    }
+
 private:
     friend class SkCanvas;
     friend struct DeviceCM; //for setMatrixClip
@@ -366,10 +376,6 @@ private:
     // just called by SkCanvas for imagefilter
     SkBaseDevice* createCompatibleDeviceForImageFilter(const SkImageInfo&);
 
-    virtual SkBaseDevice* onCreateDevice(const SkImageInfo&, Usage) {
-        return NULL;
-    }
-
     /** Causes any deferred drawing to the device to be completed.
      */
     virtual void flush() {}