Add GoogleTest to the NDK.

This patch adds the following:

- sources/third_party/googletest/googletest/:
  The sources for the latest GoogleTest revision.

- sources/third_party/googletest/patches.ndk/:
  The patches applied to the upstream sources.

- sources/third_party/googletest/README.NDK:
  Readme file explaining what this is + basic usage instructions.

- sources/third_party/googletest/Android.mk:
  Build file declaring the modules to be imported to use GoogleTest

- tests/device/test-googletest-stlport:
  Simple test to build GoogleTest against STLport and run a few
  sample programs.

- tests/device/test-googletest-gnustl:
  Same as above, but linking against GNU libstdc++.
  This is required because GoogleTest will compile differently
  based on the features of the C++ STL being used (e.g. STLport
  doesn't have <tr1/tuple>)

- tests/device/test-googletest-full:
  The full GoogleTest unit test program (740 tests). Ignored by
  tests/run-tests.sh by default since it's long to build and run.

+ Update .gitignore to only ignore the top-level 'samples' directory.

Change-Id: I6ed5bc55d16f513daa8e237096c3f6771c2d9772

1 files changed, 1 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
index 37274a7e1..d952baf61 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,7 +4,7 @@
 Thumbs.db
 local.properties
 build.xml
-samples/
+/samples/
 platforms/
 toolchains/*/prebuilt/
 /ndk-stack*