move program descriptor generation to flush

src/gpu/gl/GrGpuGL.h

Index: src/gpu/gl/GrGpuGL.h
diff --git a/src/gpu/gl/GrGpuGL.h b/src/gpu/gl/GrGpuGL.h
index 4224ba64fdd3f7279c73ece0cbfdc388e5c2bb76..22153492f78e8669464586cee8bb182b1d1fe7cb 100644
--- a/src/gpu/gl/GrGpuGL.h
+++ b/src/gpu/gl/GrGpuGL.h
@@ -106,7 +106,6 @@ public:
 
 protected:
     virtual void buildProgramDesc(const GrOptDrawState&,
-                                  const GrProgramDesc::DescInfo&,
                                   GrGpu::DrawType,
                                   GrProgramDesc*) SK_OVERRIDE;
 
@@ -155,7 +154,9 @@ private:
 
 
     virtual void clearStencil(GrRenderTarget*) SK_OVERRIDE;
-    virtual bool flushGraphicsState(const GrOptDrawState&, DrawType) SK_OVERRIDE;
+    virtual bool flushGraphicsState(const GrOptDrawState&,
+                                    const GrProgramDesc&,
+                                    DrawType) SK_OVERRIDE;
 
     // GrDrawTarget overrides
     virtual void didAddGpuTraceMarker() SK_OVERRIDE;
@@ -188,7 +189,7 @@ private:
         ~ProgramCache();
 
         void abandon();
-        GrGLProgram* getProgram(const GrOptDrawState&, DrawType);
+        GrGLProgram* getProgram(const GrOptDrawState&, const GrProgramDesc&, DrawType);
 
     private:
         enum {