permissions: remove duplicates from request multiple at the Blink level

third_party/WebKit/Source/modules/permissions/PermissionsCallback.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PermissionsCallback_h
 #define PermissionsCallback_h
 
 #include "platform/heap/Handle.h"
 #include "public/platform/WebCallbacks.h"
 #include "public/platform/WebPassOwnPtr.h"
 #include "public/platform/WebVector.h"
 #include "public/platform/modules/permissions/WebPermissionStatus.h"
 #include "public/platform/modules/permissions/WebPermissionType.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class ScriptPromiseResolver;
 
 // PermissionQueryCallback is an implementation of WebPermissionCallbacks
 // that will resolve the underlying promise depending on the result passed to
 // the callback. It takes a WebPermissionType in its constructor and will pass
 // it to the PermissionStatus.
 class PermissionsCallback final
     : public WebCallbacks<WebPassOwnPtr<WebVector<WebPermissionStatus>>, void> {
 public:
-    PermissionsCallback(ScriptPromiseResolver*, PassOwnPtr<WebVector<WebPermissionType>>);
+    PermissionsCallback(ScriptPromiseResolver*, PassOwnPtr<Vector<WebPermissionType>>, PassOwnPtr<Vector<int>>);
     ~PermissionsCallback() = default;
 
     void onSuccess(WebPassOwnPtr<WebVector<WebPermissionStatus>>) override;
     void onError() override;
 
 private:
     Persistent<ScriptPromiseResolver> m_resolver;
-    OwnPtr<WebVector<WebPermissionType>> m_permissionTypes;
+    OwnPtr<Vector<WebPermissionType>> m_requestedPermissions;
+    OwnPtr<Vector<int>> m_indexToCannonicalIndex;

[mlamouri (slow - plz ping), 2015/09/29 13:25:35]

The name is confusing. Could you use "caller index" and "internal index"?

[Lalit Maganti, 2015/09/29 14:51:50]

Done.

 
     WTF_MAKE_NONCOPYABLE(PermissionsCallback);
 };
 
 } // namespace blink
 
 #endif // PermissionsCallback_h