cc: Remove forbidden using namespace directives.

cc/scheduler_state_machine_unittest.cc

 // Copyright 2011 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 "config.h"
 
 #include "cc/scheduler_state_machine.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
-using namespace cc;
-
+namespace cc {
 namespace {
 
 const SchedulerStateMachine::CommitState allCommitStates[] = {
     SchedulerStateMachine::COMMIT_STATE_IDLE,
     SchedulerStateMachine::COMMIT_STATE_FRAME_IN_PROGRESS,
     SchedulerStateMachine::COMMIT_STATE_READY_TO_COMMIT,
     SchedulerStateMachine::COMMIT_STATE_WAITING_FOR_FIRST_DRAW
 };
 
 // Exposes the protected state fields of the SchedulerStateMachine for testing
@@ skipping 840 matching lines @@
     StateMachine state;
     state.setCanBeginFrame(true);
     state.setVisible(true);
     state.setCanDraw(true);
     state.setNeedsCommit(true);
     state.setNeedsForcedCommit(true);
     state.didLoseContext();
     EXPECT_EQ(SchedulerStateMachine::ACTION_BEGIN_FRAME, state.nextAction());
 }
 
-}  // anonymous namespace
+}  // namespace
+}  // namespace cc