Don't map internalFormat in renderbufferStorage() in embedded envrionment.

BUG=none
TEST=Run webkit layout test fast/canvas/webgl/framebuffer_test.html in embedded environment. 

Review URL: http://codereview.chromium.org/6365006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72299 0039d316-1c4b-4281-b951-d872f2087c98

webkit/gpu/webgraphicscontext3d_in_process_impl.cc

@@ -1310,20 +1310,22 @@ void WebGraphicsContext3DInProcessImpl::renderbufferStorage(
     unsigned long width,
     unsigned long height) {
   makeContextCurrent();
-  switch (internalformat) {
-  case GL_DEPTH_STENCIL:
-    internalformat = GL_DEPTH24_STENCIL8_EXT;
-    break;
-  case GL_DEPTH_COMPONENT16:
-    internalformat = GL_DEPTH_COMPONENT;
-    break;
-  case GL_RGBA4:
-  case GL_RGB5_A1:
-    internalformat = GL_RGBA;
-    break;
-  case 0x8D62:  // GL_RGB565
-    internalformat = GL_RGB;
-    break;
+  if (!is_gles2_) {
+    switch (internalformat) {
+    case GL_DEPTH_STENCIL:
+      internalformat = GL_DEPTH24_STENCIL8_EXT;
+      break;
+    case GL_DEPTH_COMPONENT16:
+      internalformat = GL_DEPTH_COMPONENT;
+      break;
+    case GL_RGBA4:
+    case GL_RGB5_A1:
+      internalformat = GL_RGBA;
+      break;
+    case 0x8D62:  // GL_RGB565
+      internalformat = GL_RGB;
+      break;
+    }
   }
   glRenderbufferStorageEXT(target, internalformat, width, height);
 }