separate view matrix from rt adjustment

src/gpu/gl/GrGLShaderBuilder.h

Index: src/gpu/gl/GrGLShaderBuilder.h
diff --git a/src/gpu/gl/GrGLShaderBuilder.h b/src/gpu/gl/GrGLShaderBuilder.h
index 233bb524f50afee552074b9cdce7fc0adaa63102..1be9a881d342cdf3ce81c2e034978ae04747ee31 100644
--- a/src/gpu/gl/GrGLShaderBuilder.h
+++ b/src/gpu/gl/GrGLShaderBuilder.h
@@ -417,10 +417,17 @@ public:
                 int effectCnt,
                 GrGLSLExpr4* inOutFSColor) SK_OVERRIDE;
 
+    /**
+     * The view matrix uniform is only valid in the VS. It is always mat33.
+     */
     GrGLUniformManager::UniformHandle getViewMatrixUniform() const {
         return fViewMatrixUniform;
     }
 
+    GrGLUniformManager::UniformHandle getRTAdjustmentVecUniform() const {
+        return fRTAdustmentVecUniform;
+    }
+
 protected:
     virtual bool compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shaderIds) const SK_OVERRIDE;
     virtual void bindProgramLocations(GrGLuint programId) const SK_OVERRIDE;
@@ -444,7 +451,7 @@ private:
     SkSTArray<10, AttributePair, true>  fEffectAttributes;
 
     GrGLUniformManager::UniformHandle   fViewMatrixUniform;
-
+    GrGLUniformManager::UniformHandle   fRTAdustmentVecUniform;
     GrGLShaderVar*                      fPositionVar;
     GrGLShaderVar*                      fLocalCoordsVar;