bug 872137 - Make history menu use PromptService asynchronously r=wesj

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extra : rebase_source : 59a3dc928967a3cf89001f77fb4d7ffd8cd07129
bug 790388 part 1 - support multiple header blocks for spdy r=hurley

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extra : rebase_source : 7911f105de34fca3d0f4d7f5166f47ab1e31f56d
bug 790388 part 2 - fix spdysession writesegments() return values r=hurley

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extra : rebase_source : b9e67e88a4098ed614bf1e70780bbc97045f1108
bug 790388 part 3 - spdy/3 server push r=hurley

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extra : rebase_source : 1ed60ebda0b790f0ff1578abe7a7732676b495cf
bug 790388 part 4 - upgrade testing/node-spdy to 1.8.8 r=hurley

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extra : rebase_source : b68f6dbf8faa5b97b4a97417d35c037b0557e426
bug 790388 part 5 - xpcshell tests for spdy/3 r=hurley

--HG--
extra : rebase_source : f6ca50052918d23d410a3f110323344472a62e6e
bug 790388 part 6 - spdy push xpcshell test r=hurley

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extra : rebase_source : 54a3f24aa543ee96ff2e2edb9a2ee7fe52e3dcbd
Bug 876834 - Do not accept sampling rates which we won't be able to handle when creating an OfflineAudioContext; r=roc
Bug 877025. Don't set 'firstShow' on the controls for a video that is already playing. r=dolske