Media Gallery: Move MediaDeviceNotificationsLinux from content to chrome.

chrome/browser/chrome_browser_main_linux.cc

Index: chrome/browser/chrome_browser_main_linux.cc
===================================================================
--- chrome/browser/chrome_browser_main_linux.cc	(revision 131949)
+++ chrome/browser/chrome_browser_main_linux.cc	(working copy)
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/chrome_browser_main_linux.h"
 
+#include "chrome/browser/media_gallery/media_device_notifications_linux.h"
+
 #if defined(USE_LINUX_BREAKPAD)
 #include <stdlib.h>
 
@@ -82,5 +84,10 @@
     InitCrashReporter();
 #endif
 
+  const FilePath kDefaultMtabPath("/etc/mtab");
+  media_device_notifications_linux_ =
+      new chrome::MediaDeviceNotificationsLinux(kDefaultMtabPath);
+  media_device_notifications_linux_->Init();
+
   ChromeBrowserMainPartsPosix::PreProfileInit();
 }