Coverity: Initialize member variables.

ui/base/dragdrop/os_exchange_data_provider_win.cc

 // Copyright (c) 2012 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.
 
 #include "ui/base/dragdrop/os_exchange_data_provider_win.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/file_path.h"
@@ skipping 57 matching lines @@
   HRESULT __stdcall Clone(IEnumFORMATETC** clone);
 
   // IUnknown implementation:
   HRESULT __stdcall QueryInterface(const IID& iid, void** object);
   ULONG __stdcall AddRef();
   ULONG __stdcall Release();
 
  private:
   // This can only be called from |CloneFromOther|, since it initializes the
   // contents_ from the other enumerator's contents.
-  FormatEtcEnumerator() : ref_count_(0) {
+  FormatEtcEnumerator() : cursor_(0), ref_count_(0) {
   }
 
   // Clone a new FormatEtc from another instance of this enumeration.
   static FormatEtcEnumerator* CloneFromOther(const FormatEtcEnumerator* other);
 
  private:
   // We are _forced_ to use a vector as our internal data model as Windows'
   // retarded IEnumFORMATETC API assumes a deterministic ordering of elements
   // through methods like Next and Skip. This exposes the underlying data
   // structure to the user. Bah.
@@ skipping 853 matching lines @@
   return new OSExchangeDataProviderWin();
 }
 
 // static
 OSExchangeData::CustomFormat OSExchangeData::RegisterCustomFormat(
     const std::string& type) {
   return RegisterClipboardFormat(ASCIIToUTF16(type).c_str());
 }
 
 }  // namespace ui