Rename some processor functions from GL to GLSL

TBR=bsalomon@google.com

BUG=skia:

Review URL: https://codereview.chromium.org/1443743002
diff --git a/src/gpu/effects/GrTextureDomain.cpp b/src/gpu/effects/GrTextureDomain.cpp
index 42d6d70..e9c80c8 100644
--- a/src/gpu/effects/GrTextureDomain.cpp
+++ b/src/gpu/effects/GrTextureDomain.cpp
@@ -247,12 +247,12 @@
 
 GrTextureDomainEffect::~GrTextureDomainEffect() {}
 
-void GrTextureDomainEffect::onGetGLProcessorKey(const GrGLSLCaps& caps,
-                                                GrProcessorKeyBuilder* b) const {
+void GrTextureDomainEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps,
+                                                  GrProcessorKeyBuilder* b) const {
     GrGLTextureDomainEffect::GenKey(*this, caps, b);
 }
 
-GrGLSLFragmentProcessor* GrTextureDomainEffect::onCreateGLInstance() const  {
+GrGLSLFragmentProcessor* GrTextureDomainEffect::onCreateGLSLInstance() const  {
     return new GrGLTextureDomainEffect(*this);
 }