Put PrintingUIWebContentsObserver and PrintingMessageFilter into printing namespace.

chrome/browser/printing/printing_message_filter.h

Index: chrome/browser/printing/printing_message_filter.h
diff --git a/chrome/browser/printing/printing_message_filter.h b/chrome/browser/printing/printing_message_filter.h
index 7a16d2eced781c76469b71aa9390ca6eb8058e11..d7614ff12983894abaaede71512a0c094d057fe1 100644
--- a/chrome/browser/printing/printing_message_filter.h
+++ b/chrome/browser/printing/printing_message_filter.h
@@ -28,10 +28,11 @@ class WebContents;
 }
 
 namespace printing {
-class PrinterQuery;
+
 class PrintJobManager;
 class PrintQueriesQueue;
-}
+class PrinterQuery;
+class PrintingUIWebContentsObserver;
 
 // This class filters out incoming printing related IPC messages for the
 // renderer process on the IPC thread.
@@ -85,33 +86,29 @@ class PrintingMessageFilter : public content::BrowserMessageFilter {
 
   // Retrieve print settings.  Uses |render_view_id| to get a parent
   // for any UI created if needed.
-  void GetPrintSettingsForRenderView(
-      int render_view_id,
-      GetPrintSettingsForRenderViewParams params,
-      const base::Closure& callback,
-      scoped_refptr<printing::PrinterQuery> printer_query);
+  void GetPrintSettingsForRenderView(int render_view_id,
+                                     GetPrintSettingsForRenderViewParams params,
+                                     const base::Closure& callback,
+                                     scoped_refptr<PrinterQuery> printer_query);
 
-  void OnGetPrintSettingsFailed(
-      const base::Closure& callback,
-      scoped_refptr<printing::PrinterQuery> printer_query);
+  void OnGetPrintSettingsFailed(const base::Closure& callback,
+                                scoped_refptr<PrinterQuery> printer_query);
 
   // Checks if printing is enabled.
   void OnIsPrintingEnabled(bool* is_enabled);
 
   // Get the default print setting.
   void OnGetDefaultPrintSettings(IPC::Message* reply_msg);
-  void OnGetDefaultPrintSettingsReply(
-      scoped_refptr<printing::PrinterQuery> printer_query,
-      IPC::Message* reply_msg);
+  void OnGetDefaultPrintSettingsReply(scoped_refptr<PrinterQuery> printer_query,
+                                      IPC::Message* reply_msg);
 
   // The renderer host have to show to the user the print dialog and returns
   // the selected print settings. The task is handled by the print worker
   // thread and the UI thread. The reply occurs on the IO thread.
   void OnScriptedPrint(const PrintHostMsg_ScriptedPrint_Params& params,
                        IPC::Message* reply_msg);
-  void OnScriptedPrintReply(
-      scoped_refptr<printing::PrinterQuery> printer_query,
-      IPC::Message* reply_msg);
+  void OnScriptedPrintReply(scoped_refptr<PrinterQuery> printer_query,
+                            IPC::Message* reply_msg);
 
   // Modify the current print settings based on |job_settings|. The task is
   // handled by the print worker thread and the UI thread. The reply occurs on
@@ -119,9 +116,8 @@ class PrintingMessageFilter : public content::BrowserMessageFilter {
   void OnUpdatePrintSettings(int document_cookie,
                              const base::DictionaryValue& job_settings,
                              IPC::Message* reply_msg);
-  void OnUpdatePrintSettingsReply(
-      scoped_refptr<printing::PrinterQuery> printer_query,
-      IPC::Message* reply_msg);
+  void OnUpdatePrintSettingsReply(scoped_refptr<PrinterQuery> printer_query,
+                                  IPC::Message* reply_msg);
 
 #if defined(ENABLE_FULL_PRINTING)
   // Check to see if print preview has been cancelled.
@@ -134,9 +130,11 @@ class PrintingMessageFilter : public content::BrowserMessageFilter {
 
   const int render_process_id_;
 
-  scoped_refptr<printing::PrintQueriesQueue> queue_;
+  scoped_refptr<PrintQueriesQueue> queue_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintingMessageFilter);
 };
 
+}  // namespace printing
+
 #endif  // CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_