Linux: Refactor printing to be more like Windows/Mac....

chrome/renderer/mock_render_thread.cc

Index: chrome/renderer/mock_render_thread.cc
===================================================================
--- chrome/renderer/mock_render_thread.cc	(revision 75320)
+++ chrome/renderer/mock_render_thread.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -120,7 +120,7 @@
     IPC_MESSAGE_HANDLER(ViewHostMsg_AllocateSharedMemoryBuffer,
                         OnAllocateSharedMemoryBuffer)
 #endif
-#if defined(OS_LINUX)
+#if defined(OS_CHROMEOS)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AllocateTempFileForPrinting,
                         OnAllocateTempFileForPrinting)
     IPC_MESSAGE_HANDLER(ViewHostMsg_TempFileForPrintingWritten,
@@ -169,7 +169,7 @@
 }
 #endif
 
-#if defined(OS_LINUX)
+#if defined(OS_CHROMEOS)
 void MockRenderThread::OnAllocateTempFileForPrinting(
     base::FileDescriptor* renderer_fd,
     int* browser_fd) {
@@ -187,7 +187,7 @@
 void MockRenderThread::OnTempFileForPrintingWritten(int browser_fd) {
   close(browser_fd);
 }
-#endif
+#endif  // defined(OS_CHROMEOS)
 
 void MockRenderThread::OnGetDefaultPrintSettings(ViewMsg_Print_Params* params) {
   if (printer_.get())