Support multiple files for AEC dump.

content/common/media/aec_dump_messages.h

Index: content/common/media/aec_dump_messages.h
diff --git a/content/common/media/aec_dump_messages.h b/content/common/media/aec_dump_messages.h
new file mode 100644
index 0000000000000000000000000000000000000000..b4d13905b81d71f202f178e3e48adff7adc791b5
--- /dev/null
+++ b/content/common/media/aec_dump_messages.h
@@ -0,0 +1,38 @@
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.

[no longer working on chromium, 2014/06/16 18:30:55]

ditto

[Henrik Grunell, 2014/06/17 20:21:41]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// IPC messages for the AEC dump.
+// Multiply-included message file, hence no include guard.
+
+//#include "base/basictypes.h"

[no longer working on chromium, 2014/06/16 18:30:55]

??

[Henrik Grunell, 2014/06/17 20:21:41]

Removed.

+//#include "base/sync_socket.h"
+#include "content/common/content_export.h"
+#include "ipc/ipc_message_macros.h"
+#include "ipc/ipc_platform_file.h"
+
+#undef IPC_MESSAGE_EXPORT

[no longer working on chromium, 2014/06/16 18:30:55]

?? add comment if it is required.

[Henrik Grunell, 2014/06/17 20:21:41]

Well, it's there in all other *messages.h files in this folder at least. Without
comments. I'm assuming it's needed for certain build cases.

+#define IPC_MESSAGE_EXPORT CONTENT_EXPORT
+#define IPC_MESSAGE_START AecDumpMsgStart

[no longer working on chromium, 2014/06/16 18:30:55]

ditto

[Henrik Grunell, 2014/06/17 20:21:41]

ditto

+
+// Messages sent from the browser to the renderer.
+
+// The browser hands over a file handle to the consumer in the renderer
+// identified by |id| to use for AEC dump.
+IPC_MESSAGE_CONTROL2(AecDumpMsg_EnableAecDump,
+                     int /* id */,
+                     IPC::PlatformFileForTransit /* file_handle */)
+
+// Tell the renderer to disable AEC dump in all consumers.
+IPC_MESSAGE_CONTROL0(AecDumpMsg_DisableAecDump)
+
+// Messages sent from the renderer to the browser.
+
+// Registers a consumer with the browser. The consumer will then get a file
+// handle when the dump is enabled.
+IPC_MESSAGE_CONTROL1(AecDumpMsg_RegisterAecDumpConsumer,
+                     int /* id */)
+
+// Unregisters a consumer with the browser.
+IPC_MESSAGE_CONTROL1(AecDumpMsg_UnregisterAecDumpConsumer,
+                     int /* id */)