reland crrev.com/212927 Move webkitplatformsupport_impl and related from glue to child

webkit/glue/webkit_glue.h

 // Copyright 2013 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 WEBKIT_GLUE_WEBKIT_GLUE_H_
 #define WEBKIT_GLUE_WEBKIT_GLUE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 28 matching lines @@
     WebKit::WebFileInfo* web_file_info);
 
 // Returns a WebCanvas pointer associated with the given Skia canvas.
 WEBKIT_GLUE_EXPORT WebKit::WebCanvas* ToWebCanvas(SkCanvas*);
 
 // Returns the number of currently-active glyph pages this process is using.
 // There can be many such pages (maps of 256 character -> glyph) so this is
 // used to get memory usage statistics.
 WEBKIT_GLUE_EXPORT int GetGlyphPageCount();
 
-// Returns an estimate of the memory usage of the renderer process. Different
-// platforms implement this function differently, and count in different
-// allocations. Results are not comparable across platforms. The estimate is
-// computed inside the sandbox and thus its not always accurate.
-WEBKIT_GLUE_EXPORT size_t MemoryUsageKB();
-
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_WEBKIT_GLUE_H_