Fix HidService lifetime issues

extensions/browser/api/extensions_api_client.h

Index: extensions/browser/api/extensions_api_client.h
diff --git a/extensions/browser/api/extensions_api_client.h b/extensions/browser/api/extensions_api_client.h
index 5f1a8e3c762fe86e23a6e5ca2d4e13e8e18552f2..9332dc6cad12d112d5b8238208534ae1f802c10b 100644
--- a/extensions/browser/api/extensions_api_client.h
+++ b/extensions/browser/api/extensions_api_client.h
@@ -19,10 +19,6 @@ namespace content {
 class BrowserContext;
 }
 
-namespace device {
-class HidService;
-}
-
 namespace extensions {
 
 class AppViewGuestDelegate;
@@ -61,9 +57,6 @@ class ExtensionsAPIClient {
   // Creates the AppViewGuestDelegate.
   virtual AppViewGuestDelegate* CreateAppViewGuestDelegate() const;
 
-  // Returns the HidService instance for this embedder.
-  virtual device::HidService* GetHidService();
-
   // Returns a delegate for some of WebViewGuest's behavior. The caller owns the
   // returned WebViewGuestDelegate.
   virtual WebViewGuestDelegate* CreateWebViewGuestDelegate (