Resize IPC input buffer to fit the next message.

ipc/ipc_channel_reader.h

Index: ipc/ipc_channel_reader.h
diff --git a/ipc/ipc_channel_reader.h b/ipc/ipc_channel_reader.h
index 3f3fc457954492b05b2a001d460fccc423052444..37ca9eda97c0896d739e9fe3c531872f1cbb8447 100644
--- a/ipc/ipc_channel_reader.h
+++ b/ipc/ipc_channel_reader.h
@@ -127,6 +127,8 @@ class IPC_EXPORT ChannelReader : public SupportsAttachmentBrokering,
  private:
   FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, AttachmentAlreadyBrokered);
   FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, AttachmentNotYetBrokered);
+  FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, ResizeOverflowBuffer);
+  FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, InvalidMessageSize);
 
   typedef std::set<BrokerableAttachment::AttachmentId> AttachmentIdSet;
 
@@ -156,6 +158,8 @@ class IPC_EXPORT ChannelReader : public SupportsAttachmentBrokering,
   void StartObservingAttachmentBroker();
   void StopObservingAttachmentBroker();
 
+  bool CheckMessageSize(size_t size);

[Maria, 2015/09/25 22:23:00]

Comment?

[Dmitry Skiba, 2015/09/28 17:37:17]

Done.

+
   Listener* listener_;
 
   // We read from the pipe into this buffer. Managed by DispatchInputData, do