Move shader precision modifier check onto GLSLCaps

src/gpu/gl/builders/GrGLProgramBuilder.cpp

Index: src/gpu/gl/builders/GrGLProgramBuilder.cpp
diff --git a/src/gpu/gl/builders/GrGLProgramBuilder.cpp b/src/gpu/gl/builders/GrGLProgramBuilder.cpp
index c410523a9b37f63011dccb7053b105ef282156ce..542d13d14cdc6240d22b2947fb8e699cdd1fdd4f 100644
--- a/src/gpu/gl/builders/GrGLProgramBuilder.cpp
+++ b/src/gpu/gl/builders/GrGLProgramBuilder.cpp
@@ -159,7 +159,7 @@ void GrGLProgramBuilder::appendUniformDecls(ShaderVisibility visibility,
                                             SkString* out) const {
     for (int i = 0; i < fUniforms.count(); ++i) {
         if (fUniforms[i].fVisibility & visibility) {
-            fUniforms[i].fVariable.appendDecl(this->ctxInfo(), out);
+            fUniforms[i].fVariable.appendDecl(this->glslCaps(), out);
             out->append(";\n");
         }
     }
@@ -169,6 +169,10 @@ const GrGLContextInfo& GrGLProgramBuilder::ctxInfo() const {
     return fGpu->ctxInfo();
 }
 
+const GrGLSLCaps* GrGLProgramBuilder::glslCaps() const {
+    return this->ctxInfo().caps()->glslCaps();
+}
+
 bool GrGLProgramBuilder::emitAndInstallProcs(GrGLSLExpr4* inputColor, GrGLSLExpr4* inputCoverage) {
     // First we loop over all of the installed processors and collect coord transforms.  These will
     // be sent to the GrGLPrimitiveProcessor in its emitCode function