clang: update gtest/gmock

clang: update gtest to r435 and gmock to r300.

This picks up some clang-specific fixes.
Unfortunately, the gtest update cascaded into a gmock update.
So I picked the earliest gmock version that mentioned a specific
gtest version so that they are more likely to work together.

gtest changelog:
- Fixes a leak in ThreadLocal.
- CMake 2.8/Visual Age compatibility patch by Hady Zalek.
- C++ Builder compatibility patch by Josh Kelley.
- Fixes gtest_filter_unittest and gtest_help_test on systems without death tests.
- Simplifies Makefile.am (by Zhanyong Wan and Vlad Losev).
- Adds alternative spellings for FAIL, SUCCEED, and TEST.
- Over-hauls README, and fixes Makefile.
- Fixes gtest-port_test on MinGW.
- Implements color output in GNU Screen sessions (issue 277).
- Minor improvement to hermetic build support in the CMake script, by Vlad Losev.
- Improves support for building Google Test as Windows DLL.
- Silence a Clang warning about an unused variable.
- Moves the universal printer from gmock to gtest and refactors the cmake script for reusing in gmock (by Vlad Losev).
- Suppresses some Clang warnings (by Chandler Carruth, Jeffrey Yasskin, and Zhanyong Wan).
- Renames CMake build script options.
- Lucid autotools compatibility patch by Jeffrey Yasskin.
- Replaces UniversalPrinter<T>::Print(x, os) with UniversalPrint(x, os) as appropriate (by Zhanyong Wan).
- Comment tweaks in CMakeLists.txt.
- Renames test script flags.
- Fixes a typo in comments.
- Adds GTEST_REMOVE_REFERENCE_AND_CONST_.
- Introduces gtest_force_shared_crt option for CMake build scripts.
- Implements printing parameters of failed parameterized tests (issue 71).

gmock changelog:
- Improves Makefile.am (by Vlad Losev); fixes Makefile and updates README (by Zhanyong Wan).
- Fixes a typo in README.
- Adds Each(m) (by Wojtek Moczydlowski); removes scripts/test/Makefile (by Zhanyong Wan); pulls in gtest r424.
- Adds a synchronization test.
- Fixes tests leaking altered values of GMOCK_FLAG(verbose) (issue 110).
- Moves the universal printer from gmock to gtest (by Vlad Losev).
- Renames test script flags.
- Adds CMake build script.
- Implements Pointwise().
- Fixes build failure on Windows/CMake (issue 111).
- Pulls r435 of gtest. This brings in the gtest_force_shared_crt option in CMake.

TEST=all existing tests should still pass

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=59701

[Nico, 2010-09-14 23:16:55]

lg

(cl description says 426 but code says 428)

[Evan Martin, 2010-09-14 23:17:12]

argh, gmock fail.  will try again

[Evan Martin, 2010-09-14 23:58:03]

Why does it always have to be a yak shave.  :<

This one builds locally, let's see what the trybots think.

Please review DEPS and gyp changes.  The rest are just imports from upstream.

[Nico, 2010-09-15 00:06:26]

slg

[Nico, 2010-09-15 00:06:42]

(i'm a bit surprised that we don't pull gmock via deps)