[NaCl SDK] Fix macros in netinet/in.h.

Remove use of u_int32_t which is not (by default) defined in
newlib's headers.  This can be revered if we can get a
change to the upstream sys/types.h in newlib (to define
u_int32_t).

R=binji@chromium.org

Review URL: https://codereview.chromium.org/57923011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233080 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233080
Added websearch-specific version of PLT Histograms

This adds variations for the key page load timing metrics to track the
performance of pages that were loaded as a result of navigating to them
from a Google web search.  It also filled in a few gaps in the existing
PLT.PT_* metrics to match metrics that are normally captured by sites
and synthetic testing:

PT_RequestToCommit - Equivalent to TTFB (Time to First Byte)
PT_RequestToDomContentLoaded - Time from navigation to DOMContentLoaded
PT_RequestToFinishDoc - Traditional load time (to the start of onload)

BUG=309021

Review URL: https://codereview.chromium.org/49353002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233081 0039d316-1c4b-4281-b951-d872f2087c98
Disabled below listed tests on official MacOSX bot.
StartupBrowserCreatorFirstRunTest.FirstRunTabsContainNTPSyncPromoAllowed
StartupBrowserCreatorFirstRunTest.FirstRunTabsContainNTPSyncPromoForbidden
StartupBrowserCreatorFirstRunTest.FirstRunTabsContainSyncPromo
StartupBrowserCreatorFirstRunTest.FirstRunTabsPromoAllowed
StartupBrowserCreatorFirstRunTest.FirstRunTabsSyncPromoForbidden
StartupBrowserCreatorFirstRunTest.RestoreOnStartupURLsPolicySpecified
StartupBrowserCreatorFirstRunTest.SyncPromoAllowed
StartupBrowserCreatorFirstRunTest.SyncPromoForbidden

BUG=314819

Review URL: https://codereview.chromium.org/58363004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233082 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233082