Remove ScopedComPtr::IsSameObject()

base/win/scoped_comptr.h

 // Copyright (c) 2011 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 BASE_WIN_SCOPED_COMPTR_H_
 #define BASE_WIN_SCOPED_COMPTR_H_
 
 #include <objbase.h>
 #include <unknwn.h>
 
@@ skipping 115 matching lines @@
   // Convenience wrapper around CoCreateInstance
   HRESULT CreateInstance(const CLSID& clsid,
                          IUnknown* outer = nullptr,
                          DWORD context = CLSCTX_ALL) {
     DCHECK(!ptr_);
     HRESULT hr = ::CoCreateInstance(clsid, outer, context, *interface_id,
                                     reinterpret_cast<void**>(&ptr_));
     return hr;
   }
 
-  // Checks if the identity of |other| and this object is the same.
-  bool IsSameObject(IUnknown* other) {
-    if (!other && !ptr_)
-      return true;
-
-    if (!other || !ptr_)
-      return false;
-
-    ScopedComPtr<IUnknown> my_identity;
-    CopyTo(IID_PPV_ARGS(my_identity.Receive()));
-
-    ScopedComPtr<IUnknown> other_identity;
-    other->QueryInterface(IID_PPV_ARGS(other_identity.Receive()));
-
-    return my_identity == other_identity;
-  }
-
   // Provides direct access to the interface.
   // Here we use a well known trick to make sure we block access to
   // IUnknown methods so that something bad like this doesn't happen:
   //    ScopedComPtr<IUnknown> p(Foo());
   //    p->Release();
   //    ... later the destructor runs, which will Release() again.
   // and to get the benefit of the DCHECKs we add to QueryInterface.
   // There's still a way to call these methods if you absolutely must
   // by statically casting the ScopedComPtr instance to the wrapped interface
   // and then making the call... but generally that shouldn't be necessary.
@@ skipping 131 matching lines @@
 // Helper to make IID_PPV_ARGS work with ScopedComPtr.
 template <typename T>
 void** IID_PPV_ARGS_Helper(base::win::details::ScopedComPtrRef<T> pp) throw() {
   return pp;
 }
 
 }  // namespace win
 }  // namespace base
 
 #endif  // BASE_WIN_SCOPED_COMPTR_H_