content/browser: Move more files into the content namespace.

content/browser/system_message_window_win_unittest.cc

Index: content/browser/system_message_window_win_unittest.cc
diff --git a/content/browser/system_message_window_win_unittest.cc b/content/browser/system_message_window_win_unittest.cc
index 1c03de56ae6bb2b09bfb2633fbe2dd0e6da91665..0d1416dca631ecf44723b90adce91bf336d72d32 100644
--- a/content/browser/system_message_window_win_unittest.cc
+++ b/content/browser/system_message_window_win_unittest.cc
@@ -14,9 +14,11 @@
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace content {
+
 class SystemMessageWindowWinTest : public testing::Test {
  public:
-  virtual ~SystemMessageWindowWinTest() { }
+  virtual ~SystemMessageWindowWinTest() {}
 
  protected:
   virtual void SetUp() OVERRIDE {
@@ -39,3 +41,5 @@ TEST_F(SystemMessageWindowWinTest, RandomMessage) {
   window_.OnDeviceChange(DBT_DEVICEQUERYREMOVE, NULL);
   message_loop_.RunAllPending();
 }
+
+}  // namespace content