Fix unit test style in Source/web/.

Source/web/tests/KeyboardTest.cpp

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 12 matching lines @@
  * 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 <gtest/gtest.h>
-
 #include "core/editing/EditingBehavior.h"
 #include "core/editing/Editor.h"
 #include "core/events/EventTarget.h"
 #include "core/events/KeyboardEvent.h"
 #include "core/frame/Settings.h"
 #include "platform/KeyboardCodes.h"
 #include "public/web/WebInputEvent.h"
 #include "web/WebInputEventConversion.h"
+#include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 class KeyboardTest : public testing::Test {
 public:
 
     // Pass a WebKeyboardEvent into the EditorClient and get back the string
     // name of which editing event that key causes.
     // E.g., sending in the enter key gives back "InsertNewline".
     const char* interpretKeyEvent(
         const WebKeyboardEvent& webKeyboardEvent,
         PlatformEvent::Type keyType)
@@ skipping 148 matching lines @@
     EXPECT_STREQ("InsertNewline", interpretNewLine(WebInputEvent::AltKey));
 }
 
 TEST_F(KeyboardTest, TestInsertNewline4)
 {
     int modifiers = WebInputEvent::AltKey | WebInputEvent::ShiftKey;
     const char* result = interpretNewLine(modifiers);
     EXPECT_STREQ("InsertNewline", result);
 }
 
-} // empty namespace
+} // namespace blink