win: Remove GetModuleFromAddress, deduplicate __ImageBase code.

base/win/scoped_handle.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 "base/win/scoped_handle.h"
 
 #include <stddef.h>
 
 #include <unordered_map>
 
 #include "base/debug/alias.h"
 #include "base/debug/stack_trace.h"
 #include "base/hash.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/synchronization/lock_impl.h"
 #include "base/threading/thread_local.h"
+#include "base/win/current_module.h"
 
 extern "C" {
 __declspec(dllexport) void* GetHandleVerifier();
 typedef void* (*GetHandleVerifierFn)();
 }
 
-// http://blogs.msdn.com/oldnewthing/archive/2004/10/25/247180.aspx
-extern "C" IMAGE_DOS_HEADER __ImageBase;
-
 namespace {
 
 struct HandleHash {
   size_t operator()(const HANDLE& handle) const {
     char buffer[sizeof(handle)];
     memcpy(buffer, &handle, sizeof(handle));
     return base::Hash(buffer, sizeof(buffer));
   }
 };
 
@@ skipping 202 matching lines @@
   if (i == map_.end())
     return;
 
   Info other = i->second;
   base::debug::Alias(&other);
   base::debug::Alias(&creation_stack_);
   CHECK(false);  // CloseHandle called on tracked handle.
 }
 
 HMODULE ActiveVerifier::GetModule() const {
-  return reinterpret_cast<HMODULE>(&__ImageBase);
+  return CURRENT_MODULE();
 }
 
 }  // namespace
 
 void* GetHandleVerifier() {
   return ActiveVerifier::Get();
 }
 
 namespace base {
 namespace win {
@@ skipping 22 matching lines @@
 void OnHandleBeingClosed(HANDLE handle) {
   return ActiveVerifier::Get()->OnHandleBeingClosed(handle);
 }
 
 HMODULE GetHandleVerifierModuleForTesting() {
   return g_active_verifier->GetModule();
 }
 
 }  // namespace win
 }  // namespace base