Support using OpenGL ES context on desktop

src/gpu/gl/SkGLContextHelper.cpp

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gl/SkGLContextHelper.h"
 #include "GrGLUtil.h"
 
 SkGLContextHelper::SkGLContextHelper()
     : fFBO(0)
     , fColorBufferID(0)
     , fDepthStencilBufferID(0)
     , fGL(NULL) {
 }
 
 SkGLContextHelper::~SkGLContextHelper() {
 
     if (fGL) {
         // TODO: determine why DeleteFramebuffers is generating a GL error in tests
         SK_GL_NOERRCHECK(*this, DeleteFramebuffers(1, &fFBO));
         SK_GL_NOERRCHECK(*this, DeleteRenderbuffers(1, &fColorBufferID));
         SK_GL_NOERRCHECK(*this, DeleteRenderbuffers(1, &fDepthStencilBufferID));
     }
 
     SkSafeUnref(fGL);
 }
 
-bool SkGLContextHelper::init(int width, int height) {
+bool SkGLContextHelper::init(GrGLStandard forcedGpuAPI, int width,
+                             int height) {
     if (fGL) {
         fGL->unref();
         this->destroyGLContext();
     }
 
-    fGL = this->createGLContext();
+    fGL = this->createGLContext(forcedGpuAPI);
     if (fGL) {
         const GrGLubyte* temp;
 
         if (!fGL->validate()) {
             fGL = NULL;
             this->destroyGLContext();
             return false;
         }
 
         SK_GL_RET(*this, temp, GetString(GR_GL_VERSION));
@@ skipping 79 matching lines @@
             fGL->unref();
             fGL = NULL;
             this->destroyGLContext();
             return false;
         } else {
             return true;
         }
     }
     return false;
 }