[Media Galleries] Add an ImageCaptureCore listener for Mac. (part 2)

chrome/browser/chrome_browser_main_mac.mm

Index: chrome/browser/chrome_browser_main_mac.mm
diff --git a/chrome/browser/chrome_browser_main_mac.mm b/chrome/browser/chrome_browser_main_mac.mm
index fc4bb446014d02a6aa1b854c33f3cbdb3439d668..6ad512f78079f17eaeea0661cf24d582f5b1e0ae 100644
--- a/chrome/browser/chrome_browser_main_mac.mm
+++ b/chrome/browser/chrome_browser_main_mac.mm
@@ -23,6 +23,7 @@
 #import "chrome/browser/mac/keystone_glue.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/system_monitor/removable_device_notifications_mac.h"
+#include "chrome/browser/system_monitor/image_capture_device_browser_mac.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/common/main_function_params.h"
@@ -283,6 +284,7 @@ void ChromeBrowserMainPartsMac::PreMainMessageLoopStart() {
 void ChromeBrowserMainPartsMac::PreProfileInit() {
   removable_device_notifications_mac_ =
       new chrome::RemovableDeviceNotificationsMac();
+  device_browser_.reset(new chrome::ImageCaptureDeviceBrowser);
   ChromeBrowserMainPartsPosix::PreProfileInit();
 }