Disable LCD text when rasterizing SkPictureShader tiles.

include/core/SkCanvas.h

Index: include/core/SkCanvas.h
diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h
index 3eecaf760a787f5e17c7352b51da5759a06472c3..2e6cae9d86c5dc4db2884d58d7ed352d6be54aa5 100644
--- a/include/core/SkCanvas.h
+++ b/include/core/SkCanvas.h
@@ -98,8 +98,9 @@ public:
     /** Construct a canvas with the specified bitmap to draw into.
         @param bitmap   Specifies a bitmap for the canvas to draw into. Its
                         structure are copied to the canvas.
+        @param props    If specified, these are the new canvas surface properties.

[reed1, 2015/01/30 20:18:26]

// If NULL is passed, we use ...(?)... for the props

[f(malita), 2015/02/01 03:46:29]

Argh. After trying to come up with a good description which doesn't leak impl
details, I'm giving up and switching to a const& ctor where I can just dodge it.
You win this time! :)

     */
-    explicit SkCanvas(const SkBitmap& bitmap);
+    explicit SkCanvas(const SkBitmap& bitmap, const SkSurfaceProps* props = NULL);

[reed1, 2015/01/30 20:18:26]

Can't use explicit when we have more than one parameter.

     virtual ~SkCanvas();
 
     SkMetaData& getMetaData();
@@ -1278,7 +1279,6 @@ private:
     };
     SkCanvas(const SkIRect& bounds, InitFlags);
     SkCanvas(SkBaseDevice*, const SkSurfaceProps*, InitFlags);
-    SkCanvas(const SkBitmap&, const SkSurfaceProps&);
 
     // needs gettotalclip()
     friend class SkCanvasStateUtils;