FeatureInfo: Remove allowed_extensions and init workarounds early

gpu/command_buffer/service/context_group.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/context_group.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 59 matching lines @@
 }
 
 static void GetIntegerv(GLenum pname, uint32* var) {
   GLint value = 0;
   glGetIntegerv(pname, &value);
   *var = value;
 }
 
 bool ContextGroup::Initialize(
     GLES2Decoder* decoder,
-    const DisallowedFeatures& disallowed_features,
-    const char* allowed_features) {
+    const DisallowedFeatures& disallowed_features) {
   // If we've already initialized the group just add the context.
   if (HaveContexts()) {
     decoders_.push_back(base::AsWeakPtr<GLES2Decoder>(decoder));
     return true;
   }
 
-  if (!feature_info_->Initialize(disallowed_features, allowed_features)) {
+  if (!feature_info_->Initialize(disallowed_features)) {
     LOG(ERROR) << "ContextGroup::Initialize failed because FeatureInfo "
                << "initialization failed.";
     return false;
   }
 
   const GLint kMinRenderbufferSize = 512;  // GL says 1 pixel!
   GLint max_renderbuffer_size = 0;
   if (!QueryGLFeature(
       GL_MAX_RENDERBUFFER_SIZE, kMinRenderbufferSize,
       &max_renderbuffer_size)) {
@@ skipping 278 matching lines @@
     GLenum pname, GLint min_required, uint32* v) {
   uint32 value = 0;
   GetIntegerv(pname, &value);
   bool result = CheckGLFeatureU(min_required, &value);
   *v = value;
   return result;
 }
 
 }  // namespace gles2
 }  // namespace gpu