clang/win: Fix calling delete[] on void* in base.

Calling delete[] on void* is undefined behavior. Cast to the right
type before calling delete[]. Fixes a clang warning.

BUG=82385
TBR=siggi

Review URL: https://codereview.chromium.org/401423002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284709 0039d316-1c4b-4281-b951-d872f2087c98

base/win/event_trace_consumer_unittest.cc

@@ -45,7 +45,7 @@ class TestConsumer: public EtwTraceConsumerBase<TestConsumer> {
   void ClearQueue() {
     for (EventQueue::const_iterator it(events_.begin()), end(events_.end());
          it != end; ++it) {
-      delete[] it->MofData;
+      delete[] reinterpret_cast<char*>(it->MofData);
     }
 
     events_.clear();