Add GrRenderTarget parameter to GrTextContext::canDraw

src/gpu/GrBitmapTextContext.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 GrBitmapTextContext_DEFINED
 #define GrBitmapTextContext_DEFINED
 
@@ skipping 21 matching lines @@
     SkRect                            fVertexBounds;
     GrTexture*                        fCurrTexture;
     GrMaskFormat                      fCurrMaskFormat;
     SkAutoTUnref<const GrGeometryProcessor> fCachedGeometryProcessor;
     // Used to check whether fCachedEffect is still valid.
     uint32_t                          fEffectTextureUniqueID;
     SkMatrix                          fLocalMatrix;
 
     GrBitmapTextContext(GrContext*, const SkDeviceProperties&);
 
-    bool canDraw(const SkPaint& paint, const SkMatrix& viewMatrix) SK_OVERRIDE;
+    bool canDraw(const GrRenderTarget*, const SkPaint&, const SkMatrix& viewMatrix) SK_OVERRIDE;
 
-    virtual void onDrawText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
-                            const SkMatrix& viewMatrix, const char text[], size_t byteLength,
-                            SkScalar x, SkScalar y) SK_OVERRIDE;
-    virtual void onDrawPosText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
-                               const SkMatrix& viewMatrix,
-                               const char text[], size_t byteLength,
-                               const SkScalar pos[], int scalarsPerPosition,
-                               const SkPoint& offset) SK_OVERRIDE;
+    void onDrawText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
+                    const SkMatrix& viewMatrix, const char text[], size_t byteLength,
+                    SkScalar x, SkScalar y) SK_OVERRIDE;
+    void onDrawPosText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
+                       const SkMatrix& viewMatrix,
+                       const char text[], size_t byteLength,
+                       const SkScalar pos[], int scalarsPerPosition,
+                       const SkPoint& offset) SK_OVERRIDE;
 
     void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&);
     void appendGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontScaler*);
     bool uploadGlyph(GrGlyph*, GrFontScaler*);
     void flush();                 // automatically called by destructor
     void finish();
 };
 
 #endif