Update ninja to v1.3.3 on Mac, Linux32, Linux64, Windows.

Update ninja to v1.3.3 on Mac, Linux32, Linux64, Windows.

On mac, I ran:
git checkout v1.3.3
./bootstrap.py
CXX=path/to/chromiums/clang++ ./configure --with-gtest=path/to/gtest
./ninja ninja_test
./ninja_test # all passed
strip ninja

Empty build perf is ~7% slower (https://github.com/martine/ninja/issues/544),
but this allows us to enable deps mode by default which will make empty builds
twice as fast.

Mac binary size grew by ~16kB.

The linux binaries were built by thestig@chromium.org.
The windows binary was built by scottmg@chromium.org.

New stuff since 1.1:
- NINJA_STATUS now allows %e, for elapsed time.
- "pool" feature
- "compdb" tool for writing clang compilation databases
- faster deps mode (needs to be explicitly enabled in gyp, not done yet)

BUG=241628

[scottmg, 2013-05-20 19:23:28]

lgtm