Enable clean child process exit in sanitizer builds on ChromeOS.

content/child/child_thread_impl.cc

Index: content/child/child_thread_impl.cc
diff --git a/content/child/child_thread_impl.cc b/content/child/child_thread_impl.cc
index 4db2e27c338d85b87b5c888475530dfdf04e61e8..b13614428188d34371bf4fc73da09614298f5cd7 100644
--- a/content/child/child_thread_impl.cc
+++ b/content/child/child_thread_impl.cc
@@ -79,10 +79,9 @@ base::LazyInstance<base::ThreadLocalPointer<ChildThreadImpl> > g_lazy_tls =
 // plugins), PluginThread has EnsureTerminateMessageFilter.
 #if defined(OS_POSIX)
 
-// TODO(earthdok): Re-enable on CrOS http://crbug.com/360622
-#if (defined(ADDRESS_SANITIZER) || defined(LEAK_SANITIZER) || \
-     defined(MEMORY_SANITIZER) || defined(THREAD_SANITIZER) || \
-     defined(UNDEFINED_SANITIZER)) && !defined(OS_CHROMEOS)
+#if defined(ADDRESS_SANITIZER) || defined(LEAK_SANITIZER) || \
+    defined(MEMORY_SANITIZER) || defined(THREAD_SANITIZER) || \
+    defined(UNDEFINED_SANITIZER)
 // A thread delegate that waits for |duration| and then exits the process with
 // _exit(0).
 class WaitAndExitDelegate : public base::PlatformThread::Delegate {
@@ -137,10 +136,9 @@ class SuicideOnChannelErrorFilter : public IPC::MessageFilter {
     //
     // So, we install a filter on the sender so that we can process this event
     // here and kill the process.
-    // TODO(earthdok): Re-enable on CrOS http://crbug.com/360622
-#if (defined(ADDRESS_SANITIZER) || defined(LEAK_SANITIZER) || \
-     defined(MEMORY_SANITIZER) || defined(THREAD_SANITIZER) || \
-     defined(UNDEFINED_SANITIZER)) && !defined(OS_CHROMEOS)
+#if defined(ADDRESS_SANITIZER) || defined(LEAK_SANITIZER) || \
+    defined(MEMORY_SANITIZER) || defined(THREAD_SANITIZER) || \
+    defined(UNDEFINED_SANITIZER)
     // Some sanitizer tools rely on exit handlers (e.g. to run leak detection,
     // or dump code coverage data to disk). Instead of exiting the process
     // immediately, we give it 60 seconds to run exit handlers.