Make GrGLShaderBuilder responsible for enabling GLSL extensions

src/gpu/gl/GrGLSL.cpp

Index: src/gpu/gl/GrGLSL.cpp
===================================================================
--- src/gpu/gl/GrGLSL.cpp	(revision 8458)
+++ src/gpu/gl/GrGLSL.cpp	(working copy)
@@ -9,8 +9,7 @@
 #include "GrGLShaderVar.h"
 #include "SkString.h"
 
-GrGLSLGeneration GrGetGLSLGeneration(GrGLBinding binding,
-                                   const GrGLInterface* gl) {
+GrGLSLGeneration GrGetGLSLGeneration(GrGLBinding binding, const GrGLInterface* gl) {
     GrGLSLVersion ver = GrGLGetGLSLVersion(gl);
     switch (binding) {
         case kDesktop_GrGLBinding:
@@ -34,8 +33,7 @@
     }
 }
 
-const char* GrGetGLSLVersionDecl(GrGLBinding binding,
-                                   GrGLSLGeneration gen) {
+const char* GrGetGLSLVersionDecl(GrGLBinding binding, GrGLSLGeneration gen) {
     switch (gen) {
         case k110_GrGLSLGeneration:
             if (kES2_GrGLBinding == binding) {
@@ -61,9 +59,7 @@
     }
 }
 
-bool GrGLSLSetupFSColorOuput(GrGLSLGeneration gen,
-                             const char* nameIfDeclared,
-                             GrGLShaderVar* var) {
+bool GrGLSLSetupFSColorOuput(GrGLSLGeneration gen, const char* nameIfDeclared, GrGLShaderVar* var) {
     bool declaredOutput = k110_GrGLSLGeneration != gen;
     var->set(kVec4f_GrSLType,
              GrGLShaderVar::kOut_TypeModifier,