Bug 853387 patch for branches - run the Google Earth plugin out-of-process on x86 as well as x86-64, r=smichaud a=lsblakk

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extra : transplant_source : %18%02%D4P%87%8AJY%5B%01%D1%2A%00%CD%87%03%C5%03%D6%CE
Bug 841882 - Revert bug 597525. a=backout