command_buffer: Add support for creating non-WebGL ES 3 contexts

gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
index b66d675a1f9d20e8c02279d152818c3d21bc7930..691f27204d31708812fa21496816c9d5356c3c73 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
@@ -93,7 +93,7 @@ void GLES3DecoderTest::SetUp() {
   InitState init;
   init.gl_version = "OpenGL ES 3.0";
   init.bind_generates_resource = true;
-  init.webgl_version = 2;
+  init.context_type = ContextCreationAttribHelper::CONTEXT_TYPE_OPENGLES3;
   InitDecoderWithCommandLine(init, &command_line);
 }