Add <extensionview>

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 f6c9e25ca8ff5ed95dd6a9b7694af29fc8d81b03..e6ff133134f967007154a44eb740a2647f023696 100644
--- a/extensions/browser/api/extensions_api_client.h
+++ b/extensions/browser/api/extensions_api_client.h
@@ -29,6 +29,8 @@ class ContentRulesRegistry;
 class DevicePermissionsPrompt;
 class ExtensionOptionsGuest;
 class ExtensionOptionsGuestDelegate;
+class ExtensionViewGuest;
+class ExtensionViewGuestDelegate;
 class ManagementAPIDelegate;
 class MimeHandlerViewGuest;
 class MimeHandlerViewGuestDelegate;
@@ -75,6 +77,10 @@ class ExtensionsAPIClient {
   virtual ExtensionOptionsGuestDelegate* CreateExtensionOptionsGuestDelegate(
       ExtensionOptionsGuest* guest) const;
 
+  // Returns a delegate for ExtensionViewGuest.=
+  virtual ExtensionViewGuestDelegate* CreateExtensionViewGuestDelegate(
+      ExtensionViewGuest* guest) const;
+
   // Creates a delegate for MimeHandlerViewGuest.
   virtual scoped_ptr<MimeHandlerViewGuestDelegate>
       CreateMimeHandlerViewGuestDelegate(MimeHandlerViewGuest* guest) const;