Revert of 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 d2e07b7dc7ff896d4bcef4f777990a6bef91979e..4a60df57da21d79a77d40aab1570674b6177214c 100644
--- a/extensions/browser/api/extensions_api_client.h
+++ b/extensions/browser/api/extensions_api_client.h
@@ -17,6 +17,10 @@
 
 namespace content {
 class BrowserContext;
+}
+
+namespace device {
+class HidService;
 }
 
 namespace extensions {
@@ -72,6 +76,9 @@
   // 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 (