Add glTexGen funcs to interface

include/gpu/gl/GrGLInterface.h

Index: include/gpu/gl/GrGLInterface.h
diff --git a/include/gpu/gl/GrGLInterface.h b/include/gpu/gl/GrGLInterface.h
index 852b4bd551c954aed64f5657e92fa19a30cca354..b99f2633c405f42c0cf191fec41bd8aa1954009b 100644
--- a/include/gpu/gl/GrGLInterface.h
+++ b/include/gpu/gl/GrGLInterface.h
@@ -159,6 +159,7 @@ public:
     GLPtr<GrGLClearProc> fClear;
     GLPtr<GrGLClearColorProc> fClearColor;
     GLPtr<GrGLClearStencilProc> fClearStencil;
+    GLPtr<GrGLClientActiveTextureProc> fClientActiveTexture;
     GLPtr<GrGLColorMaskProc> fColorMask;
     GLPtr<GrGLCompileShaderProc> fCompileShader;
     GLPtr<GrGLCompressedTexImage2DProc> fCompressedTexImage2D;
@@ -176,12 +177,14 @@ public:
     GLPtr<GrGLDeleteVertexArraysProc> fDeleteVertexArrays;
     GLPtr<GrGLDepthMaskProc> fDepthMask;
     GLPtr<GrGLDisableProc> fDisable;
+    GLPtr<GrGLDisableClientStateProc> fDisableClientState;
     GLPtr<GrGLDisableVertexAttribArrayProc> fDisableVertexAttribArray;
     GLPtr<GrGLDrawArraysProc> fDrawArrays;
     GLPtr<GrGLDrawBufferProc> fDrawBuffer;
     GLPtr<GrGLDrawBuffersProc> fDrawBuffers;
     GLPtr<GrGLDrawElementsProc> fDrawElements;
     GLPtr<GrGLEnableProc> fEnable;
+    GLPtr<GrGLEnableClientStateProc> fEnableClientState;
     GLPtr<GrGLEnableVertexAttribArrayProc> fEnableVertexAttribArray;
     GLPtr<GrGLEndQueryProc> fEndQuery;
     GLPtr<GrGLFinishProc> fFinish;
@@ -234,6 +237,9 @@ public:
     GLPtr<GrGLStencilMaskSeparateProc> fStencilMaskSeparate;
     GLPtr<GrGLStencilOpProc> fStencilOp;
     GLPtr<GrGLStencilOpSeparateProc> fStencilOpSeparate;
+    GLPtr<GrGLTexGenfProc> fTexGenf;
+    GLPtr<GrGLTexGenfvProc> fTexGenfv;
+    GLPtr<GrGLTexGeniProc> fTexGeni;
     GLPtr<GrGLTexImage2DProc> fTexImage2D;
     GLPtr<GrGLTexParameteriProc> fTexParameteri;
     GLPtr<GrGLTexParameterivProc> fTexParameteriv;
@@ -263,6 +269,7 @@ public:
     GLPtr<GrGLUseProgramProc> fUseProgram;
     GLPtr<GrGLVertexAttrib4fvProc> fVertexAttrib4fv;
     GLPtr<GrGLVertexAttribPointerProc> fVertexAttribPointer;
+    GLPtr<GrGLVertexPointerProc> fVertexPointer;
     GLPtr<GrGLViewportProc> fViewport;
 
     // Experimental: Functions for GL_NV_path_rendering. These will be