Revert 164120 - content/browser: Move more files into the content namespace.

content/browser/trace_message_filter.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_BROWSER_TRACE_MESSAGE_FILTER_H_
 #define CONTENT_BROWSER_TRACE_MESSAGE_FILTER_H_
 
 #include <string>
 #include <vector>
 
 #include "content/public/browser/browser_message_filter.h"
 
-namespace content {
-
 // This class sends and receives trace messages on the browser process.
 // See also: trace_controller.h
 // See also: child_trace_message_filter.h
-class TraceMessageFilter : public BrowserMessageFilter {
+class TraceMessageFilter : public content::BrowserMessageFilter {
  public:
   TraceMessageFilter();
 
-  // BrowserMessageFilter overrides.
+  // content::BrowserMessageFilter override.
   virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE;
+
+  // content::BrowserMessageFilter implementation.
   virtual void OnChannelClosing() OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;
 
   void SendBeginTracing(const std::vector<std::string>& included_categories,
                         const std::vector<std::string>& excluded_categories);
   void SendEndTracing();
   void SendGetTraceBufferPercentFull();
   void SendSetWatchEvent(const std::string& category_name,
                          const std::string& event_name);
@@ skipping 14 matching lines @@
   bool has_child_;
 
   // Awaiting ack for previously sent SendEndTracing
   bool is_awaiting_end_ack_;
   // Awaiting ack for previously sent SendGetTraceBufferPercentFull
   bool is_awaiting_buffer_percent_full_ack_;
 
   DISALLOW_COPY_AND_ASSIGN(TraceMessageFilter);
 };
 
-}  // namespace content
+#endif  // CONTENT_BROWSER_TRACE_MESSAGE_FILTER_H_
 
-#endif  // CONTENT_BROWSER_TRACE_MESSAGE_FILTER_H_