Move DstCoordTexture to GrXP, rename and remove the word "copy" from dstcopytexture names.

src/gpu/gl/GrGLXferProcessor.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLXferProcessor_DEFINED
 #define GrGLXferProcessor_DEFINED
 
@@ skipping 45 matching lines @@
         to have an identical processor key as the one that created this GrGLXferProcessor. This
         function calls onSetData on the subclass of GrGLXferProcessor
      */
     void setData(const GrGLProgramDataManager& pdm, const GrXferProcessor& xp);
 
 private:
     virtual void onEmitCode(const EmitArgs&) = 0;
 
     virtual void onSetData(const GrGLProgramDataManager&, const GrXferProcessor&) = 0;
 
-    GrGLProgramDataManager::UniformHandle fDstCopyTopLeftUni;
-    GrGLProgramDataManager::UniformHandle fDstCopyScaleUni;
+    GrGLProgramDataManager::UniformHandle fDstTopLeftUni;
+    GrGLProgramDataManager::UniformHandle fDstScaleUni;
 
     typedef GrGLProcessor INHERITED;
 };
 #endif