Move shader compiling to ProgramBuilder and various ShaderBuilder cleanups.

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 2ad58270753c0fd9322fab2d1043be282efdb1e5..1026387a4da09dded1f5a7eec827472d4fbd8a69 100644
--- a/src/gpu/gl/GrGLCaps.h
+++ b/src/gpu/gl/GrGLCaps.h
@@ -171,9 +171,6 @@ public:
      */
     bool bgraIsInternalFormat() const { return fBGRAIsInternalFormat; }
 
-    /// GL_ARB_texture_swizzle support
-    bool textureSwizzleSupport() const { return fTextureSwizzleSupport; }
-
     /// Is there support for GL_UNPACK_ROW_LENGTH
     bool unpackRowLengthSupport() const { return fUnpackRowLengthSupport; }
 
@@ -192,9 +189,6 @@ public:
     /// Is there support for glTexStorage
     bool texStorageSupport() const { return fTexStorageSupport; }
 
-    /// Is there support for GL_RED and GL_R8
-    bool textureRedSupport() const { return fTextureRedSupport; }
-
     /// Is GL_ARB_IMAGING supported
     bool imagingSupport() const { return fImagingSupport; }
 
@@ -340,14 +334,12 @@ private:
 
     bool fRGBA8RenderbufferSupport : 1;
     bool fBGRAIsInternalFormat : 1;
-    bool fTextureSwizzleSupport : 1;
     bool fUnpackRowLengthSupport : 1;
     bool fUnpackFlipYSupport : 1;
     bool fPackRowLengthSupport : 1;
     bool fPackFlipYSupport : 1;
     bool fTextureUsageSupport : 1;
     bool fTexStorageSupport : 1;
-    bool fTextureRedSupport : 1;
     bool fImagingSupport  : 1;
     bool fTwoFormatLimit : 1;
     bool fFragCoordsConventionSupport : 1;