[NaCl SDK] Build gtest on buildbots, but don't include it in the SDK.

native_client_sdk/src/libraries/gtest/library.dsc

Index: native_client_sdk/src/libraries/gtest/library.dsc
diff --git a/native_client_sdk/src/libraries/gtest/library.dsc b/native_client_sdk/src/libraries/gtest/library.dsc
new file mode 100644
index 0000000000000000000000000000000000000000..539b8f90044bd4f4762c66bed6e5ab2ec821deec
--- /dev/null
+++ b/native_client_sdk/src/libraries/gtest/library.dsc
@@ -0,0 +1,76 @@
+{
+  'TOOLS': ['newlib', 'glibc', 'pnacl', 'win'],
+  'SEARCH': [
+    '../../../../testing/gtest/include/gtest',
+    '../../../../testing/gtest/include/gtest/internal',
+    '../../../../testing/gtest/src',
+  ],
+  'TARGETS': [
+    {
+      'NAME' : 'gtest',
+      'TYPE' : 'lib',
+      'SOURCES' : [
+        'gtest.cc',
+        'gtest-death-test.cc',
+        'gtest-filepath.cc',
+        'gtest_main.cc',
+        'gtest-port.cc',
+        'gtest-printers.cc',
+        'gtest-test-part.cc',
+        'gtest-typed-test.cc',
+      ],
+      # Ignore warning:
+      #   gtest.cc:2555: error: enumeration value ‘COLOR_DEFAULT’ not handled in switch
+      'CXXFLAGS': ['-Wno-switch-enum'],
+      'INCLUDES': [
+        # See comment below about gtest-internal-inl.h
+        '$(NACL_SDK_ROOT)/include/gtest/internal',
+      ],
+    }
+  ],
+  'HEADERS': [
+    {
+      'FILES': [
+        'gtest-death-test.h',
+        'gtest.h',
+        'gtest-message.h',
+        'gtest-param-test.h',
+        'gtest_pred_impl.h',
+        'gtest-printers.h',
+        'gtest_prod.h',
+        'gtest-spi.h',
+        'gtest-test-part.h',
+        'gtest-typed-test.h',
+      ],
+      'DEST': 'include/gtest',
+    },
+    {
+      'FILES': [
+        'gtest-death-test-internal.h',
+        'gtest-filepath.h',
+        'gtest-internal.h',
+        'gtest-linked_ptr.h',
+        'gtest-param-util-generated.h',
+        'gtest-param-util.h',
+        'gtest-port.h',
+        'gtest-string.h',
+        'gtest-tuple.h',
+        'gtest-type-util.h',
+      ],
+      'DEST': 'include/gtest/internal',
+    },
+    {
+      # This is cheesy, but gtest.cc includes "src/gtest-internal-inl.h". Since
+      # gtest is not installed in the SDK, I don't really care about the
+      # directory layout.
+      # TODO(binji): If we decide to include gtest, put this file in a better
+      # spot.
+      'FILES': [
+        'gtest-internal-inl.h',
+      ],
+      'DEST': 'include/gtest/internal/src',
+    },
+  ],
+  'DEST': 'testing',
+  'NAME': 'gtest',
+}