Fix for process handle leaks which occured while closing a tab. These handles are opened in the BrowserMessageFilter when the channel is connected and never closed. There are a number of handles leaked for every tab as there are a number of message filter objects in the browser process inheriting from the BrowserMessageFilter class.
Fix for process handle leaks which occured while closing a tab. These handles are opened in
the BrowserMessageFilter when the channel is connected and never closed. There are a number
of handles leaked for every tab as there are a number of message filter objects in the browser
process inheriting from the BrowserMessageFilter class.

Fixes bug http://code.google.com/p/chromium/issues/detail?id=67429

BUG=67429
TEST=As described in the bug.


Review URL: http://codereview.chromium.org/6456021

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@74317 0039d316-1c4b-4281-b951-d872f2087c98

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