store info in basedevice, change getter to non-virtual const&

include/core/SkBitmapDevice.h

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkBitmapDevice_DEFINED
 #define SkBitmapDevice_DEFINED
@@ skipping 40 matching lines @@
 
     /**
      *  Construct a new device with the specified bitmap as its backend. It is
      *  valid for the bitmap to have no pixels associated with it. In that case,
      *  any drawing to this device will have no effect.
      */
     SkBitmapDevice(const SkBitmap& bitmap, const SkSurfaceProps& surfaceProps);
 
     static SkBitmapDevice* Create(const SkImageInfo&, const SkSurfaceProps&);
 
-    SkImageInfo imageInfo() const override;
-
 protected:
     bool onShouldDisableLCD(const SkPaint&) const override;
 
     /** These are called inside the per-device-layer loop for each draw call.
      When these are called, we have already applied any saveLayer operations,
      and are handling any looping from the paint, and any effects from the
      DrawFilter.
      */
     void drawPaint(const SkDraw&, const SkPaint& paint) override;
     virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode, size_t count,
@@ skipping 101 matching lines @@
     SkImageFilterCache* getImageFilterCache() override;
 
     SkBitmap    fBitmap;
 
     void setNewSize(const SkISize&);  // Used by SkCanvas for resetForNextPicture().
 
     typedef SkBaseDevice INHERITED;
 };
 
 #endif // SkBitmapDevice_DEFINED