Remove BrowserAboutHandlerTest.WillHandleBrowserAboutURL suppression.

tools/valgrind/drmemory/suppressions.txt

 # This file contains suppressions for the Dr.Memory tool, see
 # http://dev.chromium.org/developers/how-tos/using-drmemory
 #
 # This file contains suppressions for the DrMemroy reports happening
 # in the 'light' mode (a.k.a. drmemory_light) as well as in the 'full' mode.
 # Please use suppressions_full.txt for all the reports that can happen only
 # in the full mode (drmemory_full),
 
 ############################
 # Known reports on the third party we have no control over.
@@ skipping 186 matching lines @@
 # function is small, little risk for false negative in rest of it
 # TODO(bruening): switch to annotation once have support for that
 chrome.dll!HandleRendererErrorTestParameters
 
 UNADDRESSABLE ACCESS
 name=NPAPITesterBase.NoHangIfInitCrashes deliberate crash
 # function is small, little risk for false negative in rest of it
 # TODO(bruening): switch to annotation once have support for that
 npapi_test_plugin.dll!NPAPIClient::PluginClient::Initialize
 
-# This test has a death test at the end that derefences a NULL pointer.
-UNADDRESSABLE ACCESS
-name=BrowserAboutHandlerTest.WillHandleBrowserAboutURL deliberate crash
-...
-unit_tests.exe!BrowserAboutHandlerTest_WillHandleBrowserAboutURL_Test::TestBody
-
 # Deliberate NULL deref to crash the child process
 UNADDRESSABLE ACCESS
 name=CrashingChildProcess deliberate crash
 *!CrashingChildProcess
 
 UNADDRESSABLE ACCESS
 name=::Crasher::Run deliberate crash
 *!`anonymous namespace'::Crasher::Run
 
 ############################
@@ skipping 46 matching lines @@
 ...
 *!NotificationService::Notify
 
 UNADDRESSABLE ACCESS
 name=http://crbug.com/106522
 npapi_test_plugin.dll!NPAPIClient::PluginTest::id
 npapi_test_plugin.dll!NPAPIClient::ExecuteGetJavascriptUrlTest::TimerProc
 
 # Empty line at EOF - workaround for
 # http://code.google.com/p/drmemory/issues/detail?id=41