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

content/browser/host_zoom_map_impl_unittest.cc

Index: content/browser/host_zoom_map_impl_unittest.cc
===================================================================
--- content/browser/host_zoom_map_impl_unittest.cc	(revision 164795)
+++ content/browser/host_zoom_map_impl_unittest.cc	(working copy)
@@ -10,14 +10,16 @@
 #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) {
@@ -29,3 +31,5 @@
   EXPECT_DOUBLE_EQ(host_zoom_map.GetZoomLevel("normal.com"), 0);
   EXPECT_DOUBLE_EQ(host_zoom_map.GetZoomLevel("zoomed.com"), zoomed);
 }
+
+}  // namespace content