Move remaining files in content\browser to the content namespace.

content/browser/host_zoom_map_impl_unittest.cc

 // Copyright (c) 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 "content/browser/host_zoom_map_impl.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/message_loop.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace content {
+
 class HostZoomMapTest : public testing::Test {
  public:
-  HostZoomMapTest() : ui_thread_(content::BrowserThread::UI, &message_loop_) {
+  HostZoomMapTest() : ui_thread_(BrowserThread::UI, &message_loop_) {
   }
 
  protected:
   MessageLoop message_loop_;
-  content::TestBrowserThread ui_thread_;
+  TestBrowserThread ui_thread_;
 };
 
 TEST_F(HostZoomMapTest, GetSetZoomLevel) {
   HostZoomMapImpl host_zoom_map;
 
   double zoomed = 2.5;
   host_zoom_map.SetZoomLevel("zoomed.com", zoomed);
 
   EXPECT_DOUBLE_EQ(host_zoom_map.GetZoomLevel("normal.com"), 0);
   EXPECT_DOUBLE_EQ(host_zoom_map.GetZoomLevel("zoomed.com"), zoomed);
 }
+
+}  // namespace content