Add logging code to ensure that ChromeVox is loaded/unloaded

chrome/browser/chromeos/accessibility_util.cc

 // Copyright (c) 2011 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/chromeos/accessibility_util.h"
 
+#include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_accessibility_api.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/common/pref_names.h"
 #include "grit/browser_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace chromeos {
 namespace accessibility {
 
 
 void EnableAccessibility(bool enabled) {
   bool accessibility_enabled = g_browser_process &&
       g_browser_process->local_state()->GetBoolean(
           prefs::kAccessibilityEnabled);
   if (accessibility_enabled == enabled) {
+    LOG(INFO) << "Accessibility is already " <<
+        (enabled ? "enabled" : "diabled") << ".  Going to do nothing.";
     return;
   }
 
   g_browser_process->local_state()->SetBoolean(
       prefs::kAccessibilityEnabled, enabled);
   ExtensionAccessibilityEventRouter::GetInstance()->
       SetAccessibilityEnabled(enabled);
 
   // Load/Unload ChromeVox
   Profile* profile = ProfileManager::GetDefaultProfile();
   ExtensionService* extension_service =
       profile->GetExtensionService();
   std::string manifest = ResourceBundle::GetSharedInstance().
       GetRawDataResource(IDR_CHROMEVOX_MANIFEST).as_string();
   FilePath path = FilePath(extension_misc::kAccessExtensionPath)
       .AppendASCII(extension_misc::kChromeVoxDirectoryName);
   ExtensionService::ComponentExtensionInfo info(manifest, path);
   if (enabled) { // Load ChromeVox
     extension_service->register_component_extension(info);
     extension_service->LoadComponentExtension(info);
+    LOG(INFO) << "ChromeVox was Loaded.";
   } else { // Unload ChromeVox
     extension_service->UnloadComponentExtension(info);
     extension_service->UnregisterComponentExtension(info);
+    LOG(INFO) << "ChromeVox was Unloaded.";
   }
 }
 
 void ToggleAccessibility() {
   bool accessibility_enabled = g_browser_process &&
       g_browser_process->local_state()->GetBoolean(
           prefs::kAccessibilityEnabled);
   accessibility_enabled = !accessibility_enabled;
   EnableAccessibility(accessibility_enabled);
 };
 
 }  // namespace accessibility
 }  // namespace chromeos