Mojo: Get rid of some unneeded namespace qualifiers in mojo/embedder/.

mojo/embedder/embedder_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 "mojo/embedder/embedder.h"
 
 #include <string.h>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 438 matching lines @@
                        MOJO_DEADLINE_INDEFINITE));
 #endif
     EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp2));
   }
 
   EXPECT_TRUE(multiprocess_test_helper.WaitForChildTestShutdown());
   EXPECT_TRUE(test::Shutdown());
 }
 
 MOJO_MULTIPROCESS_TEST_CHILD_TEST(MultiprocessChannelsClient) {
-  embedder::ScopedPlatformHandle client_platform_handle =
+  ScopedPlatformHandle client_platform_handle =
       mojo::test::MultiprocessTestHelper::client_platform_handle.Pass();
   EXPECT_TRUE(client_platform_handle.is_valid());
 
   system::test::TestIOThread test_io_thread(
       system::test::TestIOThread::kAutoStart);
   Init();
 
   {
     ScopedTestChannel client_channel(test_io_thread.task_runner(),
                                      client_platform_handle.Pass());
@@ skipping 111 matching lines @@
 
   EXPECT_TRUE(test::Shutdown());
 }
 
 // TODO(vtl): Test immediate write & close.
 // TODO(vtl): Test broken-connection cases.
 
 }  // namespace
 }  // namespace embedder
 }  // namespace mojo