Change window title to reflect document title

[glennw]

No description provided.

[hoppipolla-critic-bot]

Critic review: https://critic.hoppipolla.co.uk/r/4011

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In order to help critic track your changes, please do not make in-place history rewrites (e.g. via git rebase -i or git commit --amend) when updating this pull request.

[glennw]

r? @jdm or @mbrubeck

[mbrubeck]

r+

[bors-servo]

saw approval from mbrubeck
at glennw@56eedba

[bors-servo]

merging glennw/servo/set-title = 56eedba into auto

[bors-servo]

glennw/servo/set-title = 56eedba merged ok, testing candidate = 357028d

[bors-servo]

some tests failed:
failure: http://build.servo.org/builders/mac2/builds/989

[jdm]

Failed due to an assertion being fixed in servo/cocoa-rs#72.

[glennw]

Updated rust-cocoa to fix mac/wpt crash caused by init_str method bug. re-r? @mbrubeck or @jdm

[jdm]

r+

[bors-servo]

saw approval from jdm
at glennw@b789424

[bors-servo]

merging glennw/servo/set-title = b789424 into auto

[bors-servo]

glennw/servo/set-title = b789424 merged ok, testing candidate = dc31d96

[bors-servo]

all tests pass:
success: http://build.servo.org/builders/linux1/builds/778
success: http://build.servo.org/builders/linux2/builds/777
success: http://build.servo.org/builders/android/builds/813
success: http://build.servo.org/builders/mac1/builds/994
success: http://build.servo.org/builders/mac2/builds/994

[bors-servo]

fast-forwarding master to auto = dc31d96