Add extra warnings to match what Android uses.

src/core/SkBuffer.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkBuffer_DEFINED
@@ skipping 21 matching lines @@
     }
     /** Initialize RBuffer with a data point and length.
     */
     SkRBuffer(const void* data, size_t size) {
         SkASSERT(data != 0 || size == 0);
         fData = (const char*)data;
         fPos = (const char*)data;
         fStop = (const char*)data + size;
     }
 
+    virtual ~SkRBuffer() { }
+
     /** Return the number of bytes that have been read from the beginning
         of the data pointer.
     */
     size_t  pos() const { return fPos - fData; }
     /** Return the total size of the data pointer. Only defined if the length was
         specified in the constructor or in a call to reset().
     */
     size_t  size() const { return fStop - fData; }
     /** Return true if the buffer has read to the end of the data pointer.
         Only defined if the length was specified in the constructor or in a call
@@ skipping 107 matching lines @@
 
 private:
     void    writeNoSizeCheck(const void* buffer, size_t size);
 
     char* fData;
     char* fPos;
     char* fStop;
 };
 
 #endif