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

src/gpu/gl/GrGLCaps.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLCaps_DEFINED
 #define GrGLCaps_DEFINED
 
 #include "SkTArray.h"
 #include "SkTDArray.h"
 #include "GrGLStencilBuffer.h"
+#include "GrDrawTarget.h"
 
 class GrGLContextInfo;
 
 /**
  * Stores some capabilities of a GL context. Most are determined by the GL
  * version and the extensions string. It also tracks formats that have passed
  * the FBO completeness test.
  */
-class GrGLCaps {
+class GrGLCaps : public GrDrawTarget::Caps {
 public:
     typedef GrGLStencilBuffer::Format StencilFormat;
 
     /**
      * Represents a supported multisampling/coverage-sampling mode.
      */
     struct MSAACoverageMode {
         // "Coverage samples" includes samples that actually have color, depth,
         // stencil, ... as well as those that don't (coverage only). All samples
         // are coverage samples. (We're using the word "coverage sample" to
@@ skipping 52 matching lines @@
      */
     GrGLCaps();
 
     GrGLCaps(const GrGLCaps& caps);
 
     GrGLCaps& operator = (const GrGLCaps& caps);
 
     /**
      * Resets the caps such that nothing is supported.
      */
-    void reset();
+    virtual void reset() SK_OVERRIDE;
 
     /**
      * Initializes the GrGLCaps to the set of features supported in the current
      * OpenGL context accessible via ctxInfo.
      */
     void init(const GrGLContextInfo& ctxInfo, const GrGLInterface* interface);
 
     /**
      * Call to note that a color config has been verified as a valid color
      * attachment. This may save future calls to glCheckFramebufferStatus
@@ skipping 44 matching lines @@
      * desired sample count is rounded up the next supported coverage sample
      * count unless a it is larger than the max in which case it is rounded
      * down. Once a coverage sample count is decided, the supported mode with
      * the fewest color samples is chosen.
      */
     const MSAACoverageMode& getMSAACoverageMode(int desiredSampleCount) const;
 
     /**
      * Prints the caps info using GrPrintf.
      */
-    void print() const;
+    virtual void print() const SK_OVERRIDE;
 
     /**
      * Gets an array of legal stencil formats. These formats are not guaranteed
      * to be supported by the driver but are legal GLenum names given the GL
      * version and extensions supported.
      */
     const SkTArray<StencilFormat, true>& stencilFormats() const {
         return fStencilFormats;
     }
 
@@ skipping 129 matching lines @@
     bool fPackFlipYSupport : 1;
     bool fTextureUsageSupport : 1;
     bool fTexStorageSupport : 1;
     bool fTextureRedSupport : 1;
     bool fImagingSupport  : 1;
     bool fTwoFormatLimit : 1;
     bool fFragCoordsConventionSupport : 1;
     bool fVertexArrayObjectSupport : 1;
     bool fUseNonVBOVertexAndIndexDynamicData : 1;
     bool fIsCoreProfile : 1;
+
+    typedef GrDrawTarget::Caps INHERITED;
 };
 
 #endif