Adds PrintingContext implementation stub for Android.

chrome/browser/printing/printing_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 CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
 #define CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 36 matching lines @@
 
  private:
   virtual ~PrintingMessageFilter();
 
 #if defined(OS_WIN)
   // Used to pass resulting EMF from renderer to browser in printing.
   void OnDuplicateSection(base::SharedMemoryHandle renderer_handle,
                           base::SharedMemoryHandle* browser_handle);
 #endif
 
-#if defined(OS_CHROMEOS)
+#if defined(OS_CHROMEOS) || defined(OS_ANDROID)
   // Used to ask the browser allocate a temporary file for the renderer
   // to fill in resulting PDF in renderer.
-  void OnAllocateTempFileForPrinting(base::FileDescriptor* temp_file_fd,
+  void OnAllocateTempFileForPrinting(int render_view_id,
+                                     base::FileDescriptor* temp_file_fd,
                                      int* sequence_number);
   void OnTempFileForPrintingWritten(int render_view_id, int sequence_number);
+#endif
+
+#if defined(OS_CHROMEOS)
   void CreatePrintDialogForFile(int render_view_id, const base::FilePath& path);
 #endif
 
+#if defined(OS_ANDROID)
+  // Updates the file descriptor for the PrintViewManagerBasic of a given
+  // render_view_id.
+  void UpdateFileDescriptor(int render_view_id, int fd);
+#endif
+
   // Given a render_view_id get the corresponding WebContents.
   // Must be called on the UI thread.
   content::WebContents* GetWebContentsForRenderView(int render_view_id);
 
   // GetPrintSettingsForRenderView must be called via PostTask and
   // base::Bind.  Collapse the settings-specific params into a
   // struct to avoid running into issues with too many params
   // to base::Bind.
   struct GetPrintSettingsForRenderViewParams;
 
@@ skipping 43 matching lines @@
   printing::PrintJobManager* print_job_manager_;
 
   ProfileIOData* profile_io_data_;
 
   const int render_process_id_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintingMessageFilter);
 };
 
 #endif  // CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_