Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/gpu/gl_string_manager.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 "chrome/browser/gpu/gl_string_manager.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/gpu_data_manager.h"
 
 GLStringManager::GLStringManager() {
 }
 
 GLStringManager::~GLStringManager() {
 }
 
 void GLStringManager::Initialize() {
   // On MacOSX or Windows, preliminary GPUInfo is enough.
 #if defined(OS_LINUX)
   // We never remove this observer from GpuDataManager.
   content::GpuDataManager::GetInstance()->AddObserver(this);
 
-  PrefService* local_state = g_browser_process->local_state();
+  PrefServiceSimple* local_state = g_browser_process->local_state();
   if (!local_state)
     return;
 
+  // TODO(joi): This should happen via browser_prefs::RegisterLocalState().
   local_state->RegisterStringPref(prefs::kGLVendorString, gl_vendor_);
   local_state->RegisterStringPref(prefs::kGLRendererString, gl_renderer_);
   local_state->RegisterStringPref(prefs::kGLVersionString, gl_version_);
 
   gl_vendor_ = local_state->GetString(prefs::kGLVendorString);
   gl_renderer_ = local_state->GetString(prefs::kGLRendererString);
   gl_version_ = local_state->GetString(prefs::kGLVersionString);
 
   if (!gl_vendor_.empty() || !gl_renderer_.empty() || !gl_version_.empty()) {
     content::GpuDataManager::GetInstance()->SetGLStrings(
@@ skipping 18 matching lines @@
   if (!gl_renderer.empty() && gl_renderer != gl_renderer_) {
     gl_renderer_ = gl_renderer;
     local_state->SetString(prefs::kGLRendererString, gl_renderer_);
   }
   if (!gl_version.empty() && gl_version != gl_version_) {
     gl_version_ = gl_version;
     local_state->SetString(prefs::kGLVersionString, gl_version_);
   }
 }