Move BrowserMessageFilter to public, and into content namespace.

content/browser/resolve_proxy_msg_helper.h

Index: content/browser/resolve_proxy_msg_helper.h
diff --git a/content/browser/resolve_proxy_msg_helper.h b/content/browser/resolve_proxy_msg_helper.h
index 4c66fb7b274fc414002d73fdc399ca9f655e4746..e80b396733b9034312cc1ebae757525256f88537 100644
--- a/content/browser/resolve_proxy_msg_helper.h
+++ b/content/browser/resolve_proxy_msg_helper.h
@@ -10,8 +10,8 @@
 #include <string>
 
 #include "base/memory/ref_counted.h"
-#include "content/browser/browser_message_filter.h"
 #include "content/common/content_export.h"
+#include "content/public/browser/browser_message_filter.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/completion_callback.h"
 #include "net/proxy/proxy_service.h"
@@ -30,7 +30,8 @@ class URLRequestContextGetter;
 // the stored IPC::Message pointers for pending requests.
 //
 // This object is expected to live on the IO thread.
-class CONTENT_EXPORT ResolveProxyMsgHelper : public BrowserMessageFilter {
+class CONTENT_EXPORT ResolveProxyMsgHelper
+    : public content::BrowserMessageFilter {
  public:
   explicit ResolveProxyMsgHelper(net::URLRequestContextGetter* getter);
   // Constructor used by unittests.
@@ -40,7 +41,7 @@ class CONTENT_EXPORT ResolveProxyMsgHelper : public BrowserMessageFilter {
   // pending queue.
   virtual ~ResolveProxyMsgHelper();
 
-  // BrowserMessageFilter implementation
+  // content::BrowserMessageFilter implementation
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;