Fix HidService lifetime issues

chrome/browser/extensions/api/chrome_extensions_api_client.h

Index: chrome/browser/extensions/api/chrome_extensions_api_client.h
diff --git a/chrome/browser/extensions/api/chrome_extensions_api_client.h b/chrome/browser/extensions/api/chrome_extensions_api_client.h
index 881a627ac6846368341a97476052d16dbbe37ca4..e7bc28c361c8789d352c158154a1f80bee4b6031 100644
--- a/chrome/browser/extensions/api/chrome_extensions_api_client.h
+++ b/chrome/browser/extensions/api/chrome_extensions_api_client.h
@@ -6,7 +6,6 @@
 #define CHROME_BROWSER_EXTENSIONS_API_CHROME_EXTENSIONS_API_CLIENT_H_
 
 #include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
 #include "extensions/browser/api/extensions_api_client.h"
 
 namespace extensions {
@@ -30,12 +29,9 @@ class ChromeExtensionsAPIClient : public ExtensionsAPIClient {
   virtual WebViewPermissionHelperDelegate*
       CreateWebViewPermissionHelperDelegate(
           WebViewPermissionHelper* web_view_permission_helper) const OVERRIDE;
-  virtual device::HidService* GetHidService() OVERRIDE;
   virtual void RegisterGuestViewTypes() OVERRIDE;
 
  private:
-  scoped_ptr<device::HidService> hid_service_;
-
   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsAPIClient);
 };