removing coord change matrices

BUG=skia:

Review URL: https://codereview.chromium.org/821243003
diff --git a/src/gpu/GrDrawTarget.cpp b/src/gpu/GrDrawTarget.cpp
index 18ea72c..1b641d8 100644
--- a/src/gpu/GrDrawTarget.cpp
+++ b/src/gpu/GrDrawTarget.cpp
@@ -359,7 +359,7 @@
     }
 
     for (int s = 0; s < drawState.numColorStages(); ++s) {
-        const GrProcessor* effect = drawState.getColorStage(s).getProcessor();
+        const GrProcessor* effect = drawState.getColorStage(s).processor();
         int numTextures = effect->numTextures();
         for (int t = 0; t < numTextures; ++t) {
             GrTexture* texture = effect->texture(t);
@@ -367,7 +367,7 @@
         }
     }
     for (int s = 0; s < drawState.numCoverageStages(); ++s) {
-        const GrProcessor* effect = drawState.getCoverageStage(s).getProcessor();
+        const GrProcessor* effect = drawState.getCoverageStage(s).processor();
         int numTextures = effect->numTextures();
         for (int t = 0; t < numTextures; ++t) {
             GrTexture* texture = effect->texture(t);