clang/win: Build without -Wno-null-dereference.

remoting/base/breakpad_win_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdio.h>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/environment.h"
 #include "base/logging.h"
@@ skipping 126 matching lines @@
     ASSERT_TRUE(crash_server_->Start());
   }
 }
 
 TEST_F(BreakpadWinDeathTest, TestAccessViolation) {
   if (callbacks_.get()) {
     EXPECT_CALL(*callbacks_, OnClientDumpRequested());
   }
 
   // Generate access violation exception.
-  ASSERT_DEATH(*reinterpret_cast<int*>(NULL) = 1, "");
+  ASSERT_DEATH(*reinterpret_cast<volatile int*>(NULL) = 1, "");
 }
 
 TEST_F(BreakpadWinDeathTest, TestInvalidParameter) {
   if (callbacks_.get()) {
     EXPECT_CALL(*callbacks_, OnClientDumpRequested());
   }
 
   // Cause the invalid parameter callback to be called.
   ASSERT_EXIT(printf(NULL), testing::ExitedWithCode(0), "");
 }
 
 TEST_F(BreakpadWinDeathTest, TestDebugbreak) {
   if (callbacks_.get()) {
     EXPECT_CALL(*callbacks_, OnClientDumpRequested());
   }
 
   // See if __debugbreak() is intercepted.
   ASSERT_DEATH(__debugbreak(), "");
 }
 
 }  // namespace remoting