Increase default stack size on Android with ASan to 2Mb.

BUG=263749,325685
TEST=cc_unittests on ASan/Android bot
R=glider@chromium.org, thakis@chromium.org, bulach@chromium.org, navabi@chromium.org

Review URL: https://codereview.chromium.org/136113006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247670 0039d316-1c4b-4281-b951-d872f2087c98

base/threading/platform_thread_android.cc

@@ -95,7 +95,13 @@ void TerminateOnThread() {
 }
 
 size_t GetDefaultThreadStackSize(const pthread_attr_t& attributes) {
+#if !defined(ADDRESS_SANITIZER)
   return 0;
+#else
+  // AddressSanitizer bloats the stack approximately 2x. Default stack size of
+  // 1Mb is not enough for some tests (see http://crbug.com/263749 for example).
+  return 2 * (1 << 20);  // 2Mb
+#endif
 }
 
 bool RegisterThreadUtils(JNIEnv* env) {