Propagate window coordinates to out-of-process iframes renderers.

ipc/ipc_message_macros.h

 // 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.
 
 // Defining IPC Messages
 //
 // Your IPC messages will be defined by macros inside of an XXX_messages.h
 // header file.  Most of the time, the system can automatically generate all
 // of messaging mechanism from these definitions, but sometimes some manual
 // coding is required.  In these cases, you will also have an XXX_messages.cc
@@ skipping 384 matching lines @@
 #define IPC_MESSAGE_UNHANDLED_ERROR() \
   IPC_MESSAGE_UNHANDLED(NOTREACHED() << \
                               "Invalid message with type = " << \
                               ipc_message__.type())
 
 #define IPC_END_MESSAGE_MAP() \
   } \
 }
 
 // This corresponds to an enum value from IPCMessageStart.
-#define IPC_MESSAGE_CLASS(message) \
-  IPC_MESSAGE_ID_CLASS(message.type())
+#define IPC_MESSAGE_CLASS(message) IPC_MESSAGE_ID_CLASS((message).type())

[nasko, 2016/02/11 18:21:28]

Why is this change needed?

[lfg, 2016/02/11 20:26:09]

Since '.' has precedence over '*', without this I can't write
IPC_MESSAGE_CLASS(*msg), I would have to write IPC_MESSAGE_CLASS((*msg)). I
believe this is worth it since it improves readability.

 
 // Deprecated legacy macro names.
 // TODO(mdempsky): Replace uses with generic names.
 
 #define IPC_MESSAGE_CONTROL0(msg) IPC_MESSAGE_CONTROL(msg)
 #define IPC_MESSAGE_CONTROL1(msg, a) IPC_MESSAGE_CONTROL(msg, a)
 #define IPC_MESSAGE_CONTROL2(msg, a, b) IPC_MESSAGE_CONTROL(msg, a, b)
 #define IPC_MESSAGE_CONTROL3(msg, a, b, c) IPC_MESSAGE_CONTROL(msg, a, b, c)
 #define IPC_MESSAGE_CONTROL4(msg, a, b, c, d) \
   IPC_MESSAGE_CONTROL(msg, a, b, c, d)
@@ skipping 125 matching lines @@
   IPC_SYNC_MESSAGE_ROUTED(msg, (a, b, c, d, e), (f, g, h))
 #define IPC_SYNC_MESSAGE_ROUTED5_4(msg, a, b, c, d, e, f, g, h, i) \
   IPC_SYNC_MESSAGE_ROUTED(msg, (a, b, c, d, e), (f, g, h, i))
 
 #endif  // IPC_IPC_MESSAGE_MACROS_H_
 
 // Clean up IPC_MESSAGE_START in this unguarded section so that the
 // XXX_messages.h files need not do so themselves.  This makes the
 // XXX_messages.h files easier to write.
 #undef IPC_MESSAGE_START