Move sync performance tests into new target

Move sync performance tests into new target

This patch moves all sync performance tests out of sync_integration_tests and
into a new target: sync_performance_tests. Since the performance tests make
use of the existing integration test framework, I have duplicated the
dependencies and conditions in chrome_tests.gypi.

All performance tests as well as the timing helper class have been moved into
live_sync/perf. The class naming convention has been changed as well, but the
tests themselves are unmodified.

The --test-terminate-timeout flag must be used to raise the timout to around 1
minute for all tests to pass. The passwords tests are the culprit here, as
they run significantly slower than the rest of the datatypes. Eventually I
would like to have a SyncPerfTest base class which overrides the default
timeout, but this is not possible with the current inheritance hierarchy.

BUG=89824
TEST=sync_performance_tests

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=93688

[braffert, 2011-07-21 20:36:19]

Previous attempt was at http://codereview.chromium.org/7376001/

Commit failed because the new performance tests target uses the same conditions
as the integration tests.  The integration tests conditions had been changed
after I copied them, leaving the new target out of date.  This caused update
failures on windows, as it appears some windows specific files had been renamed.

[anna, 2011-07-22 18:52:58]

LGTM.

[commit-bot: I haz the power, 2011-07-22 19:19:24]

Can't process patch for file
chrome/test/live_sync/performance/typed_urls_sync_perf_test.cc.
A +