Make all GrFragmentProcessors GL independent.

TBR=bsalomon@google.com

BUG=skia:

Review URL: https://codereview.chromium.org/1434313002
diff --git a/src/gpu/gl/GrGLProgramDesc.cpp b/src/gpu/gl/GrGLProgramDesc.cpp
index 2255dbd..7c482d5 100644
--- a/src/gpu/gl/GrGLProgramDesc.cpp
+++ b/src/gpu/gl/GrGLProgramDesc.cpp
@@ -6,11 +6,11 @@
  */
 #include "GrGLProgramDesc.h"
 
-#include "GrGLFragmentProcessor.h"
 #include "GrProcessor.h"
 #include "GrGLGpu.h"
 #include "GrPipeline.h"
 #include "SkChecksum.h"
+#include "glsl/GrGLSLFragmentProcessor.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
 
 /**