Update some uses of Value in chrome/browser to use the base:: namespace.

chrome/browser/chromeos/policy/device_local_account_policy_store.cc

Index: chrome/browser/chromeos/policy/device_local_account_policy_store.cc
diff --git a/chrome/browser/chromeos/policy/device_local_account_policy_store.cc b/chrome/browser/chromeos/policy/device_local_account_policy_store.cc
index 4d20480485a5f0ac875de3683db298f42022e6b4..327b11e3d70b09743a97949c2ab7f6e812e6448a 100644
--- a/chrome/browser/chromeos/policy/device_local_account_policy_store.cc
+++ b/chrome/browser/chromeos/policy/device_local_account_policy_store.cc
@@ -95,21 +95,21 @@ void DeviceLocalAccountPolicyStore::UpdatePolicy(
   policy_map_.Set(key::kShelfAutoHideBehavior,
                   POLICY_LEVEL_MANDATORY,
                   POLICY_SCOPE_USER,
-                  Value::CreateStringValue("Never"),
+                  base::Value::CreateStringValue("Never"),
                   NULL);
   // Force the |ShowLogoutButtonInTray| policy to |true|, ensuring that a big,
   // red logout button is shown in the ash system tray.
   policy_map_.Set(key::kShowLogoutButtonInTray,
                   POLICY_LEVEL_MANDATORY,
                   POLICY_SCOPE_USER,
-                  Value::CreateBooleanValue(true),
+                  base::Value::CreateBooleanValue(true),
                   NULL);
   // Force the |FullscreenAllowed| policy to |false|, ensuring that the ash
   // shelf cannot be hidden by entering fullscreen mode.
   policy_map_.Set(key::kFullscreenAllowed,
                   POLICY_LEVEL_MANDATORY,
                   POLICY_SCOPE_USER,
-                  Value::CreateBooleanValue(false),
+                  base::Value::CreateBooleanValue(false),
                   NULL);
 
   status_ = STATUS_OK;