Move ViewMatrix off of drawstate

src/gpu/GrOptDrawState.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrOptDrawState.h"
 
 #include "GrDrawState.h"
@@ skipping 55 matching lines @@
         // indicate that this can be skipped.
         fFlags = 0;
         fDrawFace = GrDrawState::kInvalid_DrawFace;
         fViewMatrix.reset();
         return;
     }
 
     fRenderTarget.reset(drawState.fRenderTarget.get());
     SkASSERT(fRenderTarget);
     fScissorState = scissorState;
-    fViewMatrix = drawState.getViewMatrix();
+    fViewMatrix = fPrimitiveProcessor->viewMatrix();
     fStencilSettings = drawState.getStencil();
     fDrawFace = drawState.getDrawFace();
     // TODO move this out of optDrawState
     if (dstCopy) {
         fDstCopy = *dstCopy;
     }
 
     fFlags = 0;
     if (drawState.isHWAntialias()) {
         fFlags |= kHWAA_Flag;
@@ skipping 119 matching lines @@
         if (this->getFragmentStage(i) != that.getFragmentStage(i)) {
             return false;
         }
     }
 
     // Now update the GrPrimitiveProcessor's batch tracker
     fPrimitiveProcessor->makeEqual(&fBatchTracker, that.getBatchTracker());
     return true;
 }