Experimental USB API implementation.

chrome/browser/profiles/profile_impl.cc

Index: chrome/browser/profiles/profile_impl.cc
diff --git a/chrome/browser/profiles/profile_impl.cc b/chrome/browser/profiles/profile_impl.cc
index 7e89356c589e0ef9c207b4caadf9f95d8ad1e065..0981c36b5e0b9aebe0dd9ad52ac9d0d9f20af383 100644
--- a/chrome/browser/profiles/profile_impl.cc
+++ b/chrome/browser/profiles/profile_impl.cc
@@ -65,6 +65,7 @@
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/ui/browser_init.h"
 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
+#include "chrome/browser/usb/usb_service.h"
 #include "chrome/browser/user_style_sheet_watcher.h"
 #include "chrome/browser/visitedlink/visitedlink_event_listener.h"
 #include "chrome/browser/visitedlink/visitedlink_master.h"
@@ -529,6 +530,10 @@ ProfileImpl::~ProfileImpl() {
   // HistoryService first.
   favicon_service_.reset();
 
+  if (usb_service_.get())
+    usb_service_->Cleanup();
+  usb_service_.reset(NULL);
+
   if (pref_proxy_config_tracker_.get())
     pref_proxy_config_tracker_->DetachFromPrefService();
 
@@ -663,6 +668,13 @@ bool ProfileImpl::WasCreatedByVersionOrLater(const std::string& version) {
   return (profile_version.CompareTo(arg_version) >= 0);
 }
 
+UsbService* ProfileImpl::GetUsbService() {
+  if (!usb_service_.get()) {
+    usb_service_.reset(new UsbService());
+  }
+  return usb_service_.get();
+}
+
 PrefService* ProfileImpl::GetPrefs() {
   DCHECK(prefs_.get());  // Should explicitly be initialized.
   return prefs_.get();