Introduce base::TestSuite::DisableTests().

base/test/test_suite.cc

Index: base/test/test_suite.cc
diff --git a/base/test/test_suite.cc b/base/test/test_suite.cc
index 9d7c158f029bc9c53f8f12f230e7475f92880470..acc57e4e7f57c558c9d4e7e0b79bf1575c9a3db4 100644
--- a/base/test/test_suite.cc
+++ b/base/test/test_suite.cc
@@ -140,6 +140,18 @@ void TestSuite::CatchMaybeTests() {
   listeners.Append(new MaybeTestDisabler);
 }
 
+void TestSuite::DisableTests(const std::string& filter) {
+  std::string gtest_filter = ::testing::FLAGS_gtest_filter;
+
+  size_t dash_pos = gtest_filter.find('-');
+  if (dash_pos == std::string::npos)  // Not found.
+    gtest_filter += "-";
+
+  gtest_filter += ":";
+  gtest_filter += filter;
+  ::testing::FLAGS_gtest_filter = gtest_filter;
+}
+
 void TestSuite::ResetCommandLine() {
   testing::TestEventListeners& listeners =
       testing::UnitTest::GetInstance()->listeners();