Move copy-surface-as-draw fallback to GrGLGpu.

src/gpu/gl/builders/GrGLShaderBuilder.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLShaderBuilder.h"
 #include "GrGLProgramBuilder.h"
 #include "GrGLShaderStringBuilder.h"
 #include "../GrGLGpu.h"
 #include "../GrGLShaderVar.h"
 
 namespace {
-inline const char* sample_function_name(GrSLType type, GrGLSLGeneration glslGen) {
-    if (kVec2f_GrSLType == type) {
-        return glslGen >= k130_GrGLSLGeneration ? "texture" : "texture2D";
-    } else {
-        SkASSERT(kVec3f_GrSLType == type);
-        return glslGen >= k130_GrGLSLGeneration ? "textureProj" : "texture2DProj";
-    }
-}
 void append_texture_lookup(SkString* out,
                            GrGLGpu* gpu,
                            const char* samplerName,
                            const char* coordName,
                            uint32_t configComponentMask,
                            const char* swizzle,
                            GrSLType varyingType = kVec2f_GrSLType) {
     SkASSERT(coordName);
 
     out->appendf("%s(%s, %s)",
-                 sample_function_name(varyingType, gpu->glslGeneration()),
+                 GrGLSLTexture2DFunctionName(varyingType, gpu->glslGeneration()),
                  samplerName,
                  coordName);
 
     char mangledSwizzle[5];
 
     // The swizzling occurs using texture params instead of shader-mangling if ARB_texture_swizzle
     // is available.
     if (!gpu->glCaps().textureSwizzleSupport() &&
         (kA_GrColorComponentFlag == configComponentMask)) {
         char alphaChar = gpu->glCaps().textureRedSupport() ? 'r' : 'a';
@@ skipping 178 matching lines @@
     fFinalized = true;
 
     if (!shaderId) {
         return false;
     }
 
     *shaderIds->append() = shaderId;
 
     return true;
 }