Replace CFX_SmartPointer cast operator with Get() method.

core/include/fxcrt/fx_basic.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef _FX_BASIC_H_
 #define _FX_BASIC_H_
 #ifndef _FX_SYSTEM_H_
 #include "fx_system.h"
@@ skipping 1420 matching lines @@
 
 template <class T>
 class CFX_SmartPointer
 {
 public:
     CFX_SmartPointer(T *pObj) : m_pObj(pObj) {}
     ~CFX_SmartPointer()
     {
         m_pObj->Release();
     }
-    operator T*(void)
+    T* Get(void)
     {
         return m_pObj;
     }
     T&          operator *(void)
     {
         return *m_pObj;
     }
     T*          operator ->(void)
     {
         return m_pObj;
@@ skipping 197 matching lines @@
     FX_FLOAT c;
     FX_FLOAT d;
     FX_FLOAT e;
     FX_FLOAT f;
     FX_FLOAT g;
     FX_FLOAT h;
     FX_FLOAT i;
 };
 
 #endif