Bug 830600 - Improve the performance of pasting into the location bar by rewriting the O(n^2) algorithm used there to be O(n); r=roc
Bug 827691 - Treat [stack:nnnn] entries in /proc/self/maps as anonymous memory.  r=jlebar.

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extra : rebase_source : bfe5db77f0a4329a6cafeecfdb9b9de605f53bc5