Fix unit test style in Source/platform/, part 1.

Source/platform/geometry/RegionTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
-
 #include "platform/geometry/Region.h"
 
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 #define TEST_INSIDE_RECT(r, x, y, w, h)                      \
     EXPECT_TRUE(r.contains(IntPoint(x, y)));                 \
     EXPECT_TRUE(r.contains(IntPoint(x + w - 1, y)));         \
     EXPECT_TRUE(r.contains(IntPoint(x, y + h - 1)));         \
     EXPECT_TRUE(r.contains(IntPoint(x + w - 1, y + h - 1))); \
     EXPECT_TRUE(r.contains(IntPoint(x, y + h / 2)));         \
     EXPECT_TRUE(r.contains(IntPoint(x + w - 1, y + h / 2))); \
     EXPECT_TRUE(r.contains(IntPoint(x + w / 2, y)));         \
     EXPECT_TRUE(r.contains(IntPoint(x + w / 2, y + h - 1))); \
@@ skipping 340 matching lines @@
     r2.unite(IntRect(20, 20, 10, 10));
     EXPECT_EQ(r, r2);
 
     // A complex region uniting a containing rect gives back the containing rect.
     r = IntRect(0, 0, 50, 50);
     r.unite(IntRect(100, 0, 50, 50));
     r. unite(IntRect(0, 0, 500, 500));
     EXPECT_EQ(Region(IntRect(0, 0, 500, 500)), r);
 }
 
-} // namespace
+} // namespace blink