Fix TestingAutomationProvider::SimulateAsanMemoryBug.

chrome/browser/automation/testing_automation_provider.cc

Index: chrome/browser/automation/testing_automation_provider.cc
diff --git a/chrome/browser/automation/testing_automation_provider.cc b/chrome/browser/automation/testing_automation_provider.cc
index d1d0a40f35399f63d268214915791577a7674c58..01d6bdfbdbeceed42ddce72dcdabd7c794a588e9 100644
--- a/chrome/browser/automation/testing_automation_provider.cc
+++ b/chrome/browser/automation/testing_automation_provider.cc
@@ -5885,15 +5885,15 @@ void TestingAutomationProvider::RefreshPolicies(
 #endif
 }
 
-static int AccessArray(const int arr[], int index) {
+static int AccessArray(const volatile int arr[], int index) {
   return arr[index];
 }
 
 void TestingAutomationProvider::SimulateAsanMemoryBug(
     base::DictionaryValue* args, IPC::Message* reply_message) {
-  int testarray[41];
-  AccessArray(testarray, 42);
+  volatile int testarray[41];

[Nirnimesh, 2012/05/22 16:29:43]

please make a note here why it's volatile.

   AutomationJSONReply(this, reply_message).SendSuccess(NULL);

[Nirnimesh, 2012/05/22 16:29:43]

Most pyauto automation hooks return _after_ they've done their job. Since this
is not in that league, please make a note of this in SimulateAsanMemoryBug's
docstring in pyauto.py. Something like:
This returns immediately before it actually causes a crash.

+  AccessArray(testarray, 42);
 }
 
 void TestingAutomationProvider::GetIndicesFromTab(