Fix up problem with uninitialized member variable.

BUG=none
TEST=build

Review URL: http://codereview.chromium.org/5836002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69341 0039d316-1c4b-4281-b951-d872f2087c98

ipc/ipc_channel_posix.cc

@@ -298,6 +298,7 @@ Channel::ChannelImpl::ChannelImpl(const IPC::ChannelHandle& channel_handle,
 #endif  // IPC_USES_READWRITE
       pipe_name_(channel_handle.name),
       listener_(listener),
+      must_unlink_(false),
       factory_(this) {
   // Check to see if we want to implement using domain sockets.
   bool uses_domain_socket = false;