Make GrDrawTarget::Caps ref counted and GrGLCaps derive from it.

src/gpu/gl/GrGpuGL.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
 #ifndef GrGpuGL_DEFINED
@@ skipping 39 matching lines @@
     virtual bool readPixelsWillPayForYFlip(
                                     GrRenderTarget* renderTarget,
                                     int left, int top,
                                     int width, int height,
                                     GrPixelConfig config,
                                     size_t rowBytes) const SK_OVERRIDE;
     virtual bool fullReadPixelsIsFasterThanPartial() const SK_OVERRIDE;
 
     virtual void abandonResources() SK_OVERRIDE;
 
-    const GrGLCaps& glCaps() const { return fGLContext.info().caps(); }
+    const GrGLCaps& glCaps() const { return *fGLContext.info().caps(); }
 
     // These functions should be used to bind GL objects. They track the GL state and skip redundant
     // bindings. Making the equivalent glBind calls directly will confuse the state tracking.
     void bindVertexArray(GrGLuint id) {
         fHWGeometryState.setVertexArrayID(this, id);
     }
     void bindIndexBufferAndDefaultVertexArray(GrGLuint id) {
         fHWGeometryState.setIndexBufferIDOnDefaultVertexArray(this, id);
     }
     void bindVertexBuffer(GrGLuint id) {
@@ skipping 140 matching lines @@
     // sets the matrix for path stenciling (uses the GL fixed pipe matrices)
     void flushPathStencilMatrix();
 
     // flushes dithering, color-mask, and face culling stat
     void flushMiscFixedFunctionState();
 
     // flushes the scissor. see the note on flushBoundTextureAndParams about
     // flushing the scissor after that function is called.
     void flushScissor();
 
-    // Inits GrDrawTarget::Caps, subclass may enable additional caps.
-    void initCaps();
-
     void initFSAASupport();
 
     // determines valid stencil formats
     void initStencilFormats();
 
     void setSpareTextureUnit();
 
     // bound is region that may be modified and therefore has to be resolved.
     // NULL means whole target. Can be an empty rect.
     void flushRenderTarget(const GrIRect* bound);
@@ skipping 190 matching lines @@
     TriState                    fHWWriteToColor;
     TriState                    fHWDitherEnabled;
     GrRenderTarget*             fHWBoundRenderTarget;
     GrTexture*                  fHWBoundTextures[GrDrawState::kNumStages];
     ///@}
 
     // we record what stencil format worked last time to hopefully exit early
     // from our loop that tries stencil formats and calls check fb status.
     int fLastSuccessfulStencilFmtIdx;
 
-    bool fPrintedCaps;
-
     typedef GrGpu INHERITED;
 };
 
 #endif