Fix several uses of ScopedTempDir in components_unittests.

components/gcm_driver/gcm_client_impl_unittest.cc

 // Copyright 2014 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 "components/gcm_driver/gcm_client_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 355 matching lines @@
     return reinterpret_cast<AutoAdvancingTestClock*>(gcm_client_->clock_.get());
   }
   net::TestURLFetcherFactory* url_fetcher_factory() {
     return &url_fetcher_factory_;
   }
   base::TestMockTimeTaskRunner* task_runner() {
     return task_runner_.get();
   }
 
  private:
+  // Must be declared first so that it is destroyed last. Injected to
+  // GCM client.
+  base::ScopedTempDir temp_directory_;
+
   // Variables used for verification.
   LastEvent last_event_;
   std::string last_app_id_;
   std::string last_registration_id_;
   std::string last_message_id_;
   GCMClient::Result last_result_;
   IncomingMessage last_message_;
   GCMClient::SendErrorDetails last_error_details_;
   base::Time last_token_fetch_time_;
   std::vector<AccountMapping> last_account_mappings_;
 
   scoped_ptr<GCMClientImpl> gcm_client_;
 
   net::TestURLFetcherFactory url_fetcher_factory_;
 
   scoped_refptr<base::TestMockTimeTaskRunner> task_runner_;
   base::ThreadTaskRunnerHandle task_runner_handle_;
 
-  // Injected to GCM client:
-  base::ScopedTempDir temp_directory_;
+  // Injected to GCM client.
   scoped_refptr<net::TestURLRequestContextGetter> url_request_context_getter_;
 };
 
 GCMClientImplTest::GCMClientImplTest()
     : last_event_(NONE),
       last_result_(GCMClient::UNKNOWN_ERROR),
       task_runner_(new base::TestMockTimeTaskRunner),
       task_runner_handle_(task_runner_),
       url_request_context_getter_(
           new net::TestURLRequestContextGetter(task_runner_)) {
@@ skipping 1234 matching lines @@
   // No need to call CompleteDeleteToken since unregistration request should
   // not be triggered.
   PumpLoopUntilIdle();
 
   EXPECT_EQ(UNREGISTRATION_COMPLETED, last_event());
   EXPECT_EQ(kAppId, last_app_id());
   EXPECT_EQ(GCMClient::SUCCESS, last_result());
 }
 
 }  // namespace gcm