JavaScript Tests - tests for bugs 461233, 458851, 459628, 460024, 460117, 461307, 461723, 462292, 462989, 463259, 460501, 461108, 461111, 461235, 461945, 462071, 462282, 462288, 462407, updated js1_8_1/trace/trace-test.js, updated failures

Bug 464141: Re-enabling browser_ctrlTab.js testcase (after disabling it to see if it was responsible for oranges)

Bug 464141: Disabling browser_ctrlTab.js testcase, on the suspicion that it's causing later browser-tests to fail on mac unittest box.

Backed out changeset bcbde22c762f due to oranges in browser_sanitize-timespans.js on mac unittest box moz2-darwin8-slave01

SRC and HREF attributes turned into clickable links in view source. p=cbartley r+sr=mrbkap a=beltzner b=17612

Fix Clear Recent History timespan behaviour on platforms without instant-apply prefs.  b=453440 r=gavin a=blocking-firefox3.1

b=464010, remove bogus #ifdef JS_TRACER in jsregexp.cpp that got rid of regexp.test on non-JS_TRACER builds; r=sayrer

Bug 463661 - Create a pref to control the location bar search sources (history, bookmark, both, none). r=dietrich, a1.9.1b2=beltzner
Bug 463535 - Continuing search immediately after changing prefs give wrong results

Bug 463217. Don't let nsLayoutUtils::DrawSingleImage/DrawSingleUnscaledImage do any tiling, restrict their drawing to the single tile. r+sr=dbaron

b=455513; add optional flag to allow converting a DDB to a DIB internally, if the surface is every used as a source; r=jmuizelaar

If a DDB is used as a source for an operation that can't be handled
natively by GDI, we end up needing to take a really slow path (creating a
temporary surface for acquire_source) for each operation.  If we convert
the DDB to a DIB, we then end up having a real image buffer and can hand
things off to pixman directly.

This isn't the default mode because I'm not sure if there are cases where a
DDB is explicitly needed (e.g. for printing), and it would change
current cairo behaviour.  It might become the default at some point in the
future.

[arm] Fix up ARM nj backend to take into account exit block merging and other changes.  Also simplify some branch code along the way.