Update uses of Value in chromeos/, cloud_print/, components/, content/ to use the base:: namespace.

components/policy/core/common/cloud/policy_header_service_unittest.cc

 // Copyright 2013 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 "base/base64.h"
 #include "base/json/json_reader.h"
 #include "base/test/test_simple_task_runner.h"
 #include "base/values.h"
 #include "components/policy/core/common/cloud/mock_cloud_policy_store.h"
 #include "components/policy/core/common/cloud/policy_header_io_helper.h"
@@ skipping 43 matching lines @@
     if (expected_dmtoken.empty()) {
       EXPECT_TRUE(headers.IsEmpty());
     } else {
       // Read header.
       std::string header;
       EXPECT_TRUE(headers.GetHeader(kPolicyHeaderName, &header));
       // Decode the base64 value into JSON.
       std::string decoded;
       base::Base64Decode(header, &decoded);
       // Parse the JSON.
-      scoped_ptr<Value> value(base::JSONReader::Read(decoded));
+      scoped_ptr<base::Value> value(base::JSONReader::Read(decoded));
       ASSERT_TRUE(value);
-      DictionaryValue* dict;
+      base::DictionaryValue* dict;
       EXPECT_TRUE(value->GetAsDictionary(&dict));
       // Read the values and verify them vs the expected values.
       std::string dm_token;
       dict->GetString("user_dmtoken", &dm_token);
       EXPECT_EQ(dm_token, expected_dmtoken);
     }
   }
 
   base::MessageLoop loop_;
   scoped_ptr<PolicyHeaderService> service_;
@@ skipping 29 matching lines @@
   user_store_.SetPolicy(scoped_ptr<PolicyData>());
   task_runner_->RunUntilIdle();
 
   net::TestURLRequest request2(
       GURL(kDMServerURL), net::DEFAULT_PRIORITY, NULL, &context);
   helper_->AddPolicyHeaders(&request2);
   ValidateHeader(request2.extra_request_headers(), "");
 }
 
 }  // namespace policy