Rip out CSAA support

src/gpu/gl/GrGLCaps.h

Index: src/gpu/gl/GrGLCaps.h
diff --git a/src/gpu/gl/GrGLCaps.h b/src/gpu/gl/GrGLCaps.h
index 857ebbc101c37bc201761c340f2f486a301e7741..1eaae2287b8d9fbea284c62118192816730fde64 100644
--- a/src/gpu/gl/GrGLCaps.h
+++ b/src/gpu/gl/GrGLCaps.h
@@ -28,23 +28,6 @@ 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
-        // match the NV extension language.)
-        int fCoverageSampleCnt;
-
-        // Color samples are samples that store data values (color, stencil,
-        // depth) rather than just representing coverage. They are a subset
-        // of coverage samples. (Again the wording was chosen to match the
-        // extension.)
-        int fColorSampleCnt;
-    };
-
-    /**
      * The type of MSAA for FBOs supported. Different extensions have different
      * semantics of how / when a resolve is performed.
      */
@@ -95,18 +78,6 @@ public:
         kLast_FBFetchType = kNV_FBFetchType,
     };
 
-    enum CoverageAAType {
-        /**
-         * No coverage sample support
-         */
-        kNone_CoverageAAType,
-
-        /**
-         * GL_NV_framebuffer_multisample_coverage
-         */
-        kNVDesktop_CoverageAAType,
-    };
-
     /**
      * Creates a GrGLCaps that advertises no support for any extensions,
      * formats, etc. Call init to initialize from a GrGLContextInfo.
@@ -186,20 +157,6 @@ public:
                kES_EXT_MsToTexture_MSFBOType == fMSFBOType;
     }
 
-    /**
-     * Reports the type of coverage sample AA support.
-     */
-    CoverageAAType coverageAAType() const { return fCoverageAAType; }
-
-    /**
-     * Chooses a supported coverage mode based on a desired sample count. The
-     * 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;
-
     FBFetchType fbFetchType() const { return fFBFetchType; }
 
     /**
@@ -348,8 +305,6 @@ private:
     int fMaxFixedFunctionTextureCoords;
 
     MSFBOType fMSFBOType;
-    CoverageAAType fCoverageAAType;
-    SkTDArray<MSAACoverageMode> fMSAACoverageModes;
 
     FBFetchType fFBFetchType;