Add a policy to disable mounting of external storage.

chrome/browser/policy/configuration_policy_handler_list.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/policy/configuration_policy_handler_list.h"
 
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "chrome/browser/policy/configuration_policy_handler.h"
 #include "chrome/browser/policy/policy_error_map.h"
@@ skipping 284 matching lines @@
     Value::TYPE_BOOLEAN },
   { key::kChromeOsReleaseChannel,
     prefs::kChromeOsReleaseChannel,
     Value::TYPE_STRING },
   { key::kGDataDisabled,
     prefs::kDisableGData,
     Value::TYPE_BOOLEAN },
   { key::kGDataDisabledOverCellular,
     prefs::kDisableGDataOverCellular,
     Value::TYPE_BOOLEAN },
+  { key::kExternalStorageDisabled,
+    prefs::kExternalStorageDisabled,
+    Value::TYPE_BOOLEAN },
 #endif  // defined(OS_CHROMEOS)
 
 #if !defined(OS_MACOSX) && !defined(OS_CHROMEOS)
   { key::kBackgroundModeEnabled,
     prefs::kBackgroundModeEnabled,
     Value::TYPE_BOOLEAN },
 #endif  // !defined(OS_MACOSX) && !defined(OS_CHROMEOS)
 };
 
 }  // namespace
@@ skipping 74 matching lines @@
 }
 
 void ConfigurationPolicyHandlerList::PrepareForDisplaying(
     PolicyMap* policies) const {
   std::vector<ConfigurationPolicyHandler*>::const_iterator handler;
   for (handler = handlers_.begin(); handler != handlers_.end(); ++handler)
     (*handler)->PrepareForDisplaying(policies);
 }
 
 }  // namespace policy