Disable filtering in draw Bitmap operation when pixels are aligned

include/gpu/SkGpuDevice.h

Index: include/gpu/SkGpuDevice.h
diff --git a/include/gpu/SkGpuDevice.h b/include/gpu/SkGpuDevice.h
index 7f564dedd28fc64d83478fe4676ab3f3bd241437..7df78b007d64d61ca19d5ef36b32fecb9bfb004a 100644
--- a/include/gpu/SkGpuDevice.h
+++ b/include/gpu/SkGpuDevice.h
@@ -207,7 +207,8 @@ private:
                             const GrTextureParams& params,
                             const SkPaint& paint,
                             SkCanvas::DrawBitmapRectFlags flags,
-                            bool bicubic);
+                            bool bicubic,
+                            bool needsTextureDomain);
     void drawTiledBitmap(const SkBitmap& bitmap,
                          const SkRect& srcRect,
                          const SkIRect& clippedSrcRect,
@@ -216,6 +217,10 @@ private:
                          SkCanvas::DrawBitmapRectFlags flags,
                          int tileSize,
                          bool bicubic);
+    bool needsTextureDomain(const SkBitmap& bitmap,
+                            const SkRect& srcRect,
+                            GrTextureParams &params,
+                            bool bicubic);
 
     static SkPicture::AccelData::Key ComputeAccelDataKey();