Remove unused memory functions

content/common/render_process_messages.h

 // Copyright 2015 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.
 
 // Common IPC messages used for render processes.
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 
 #include "base/memory/shared_memory.h"
@@ skipping 37 matching lines @@
 IPC_MESSAGE_CONTROL3(RenderProcessHostMsg_DidGenerateCacheableMetadata,
                      GURL /* url */,
                      base::Time /* expected_response_time */,
                      std::vector<char> /* data */)
 
 // Notify the browser that this render process can or can't be suddenly
 // terminated.
 IPC_MESSAGE_CONTROL1(RenderProcessHostMsg_SuddenTerminationChanged,
                      bool /* enabled */)
 
-// Asks the browser for the renderer process memory size stats.
-IPC_SYNC_MESSAGE_CONTROL0_2(RenderProcessHostMsg_GetProcessMemorySizes,
-                            size_t /* private_bytes */,
-                            size_t /* shared_bytes */)
-
 #if defined(OS_MACOSX)
 // Request that the browser load a font into shared memory for us.
 IPC_SYNC_MESSAGE_CONTROL1_3(RenderProcessHostMsg_LoadFont,
                             FontDescriptor /* font to load */,
                             uint32 /* buffer size */,
                             base::SharedMemoryHandle /* font data */,
                             uint32 /* font id */)
 #elif defined(OS_WIN)
 // Request that the given font characters be loaded by the browser so it's
 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
 // for details.
 IPC_SYNC_MESSAGE_CONTROL2_0(RenderProcessHostMsg_PreCacheFontCharacters,
                             LOGFONT /* font_data */,
                             base::string16 /* characters */)
 
 // Asks the browser for the user's monitor profile.
 IPC_SYNC_MESSAGE_CONTROL0_1(RenderProcessHostMsg_GetMonitorColorProfile,
                             std::vector<char> /* profile */)
 #endif