Added a static function pointer to cache the SetActiveURL pointer returned by...

chrome/common/child_process_logging_win.cc

 // Copyright (c) 2009 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 "chrome/common/child_process_logging.h"
 
 #include <windows.h>
 
 #include "base/string_util.h"
 #include "chrome/common/chrome_constants.h"
 #include "googleurl/src/gurl.h"
 
 namespace child_process_logging {
 
 typedef void (__cdecl *MainSetActiveURL)(const wchar_t*);
 
 void SetActiveURL(const GURL& url) {
-  HMODULE exe_module = GetModuleHandle(chrome::kBrowserProcessExecutableName);
-  if (!exe_module)
-    return;
+  static MainSetActiveURL set_active_url = NULL;
 
-  MainSetActiveURL set_active_url =
-      reinterpret_cast<MainSetActiveURL>(
+  if (!set_active_url) {
+    HMODULE exe_module = GetModuleHandle(chrome::kBrowserProcessExecutableName);
+    if (!exe_module)
+      return;
+
+    set_active_url = reinterpret_cast<MainSetActiveURL>(
           GetProcAddress(exe_module, "SetActiveURL"));

[cpu_(ooo_6.6-7.5), 2009/10/21 17:32:26]

strictly speaking the spacing here is wrong, should be indented 4 spaces, but
don't worry.

-  if (!set_active_url)
-    return;
+    if (!set_active_url)
+      return;
+  }
 
   (set_active_url)(UTF8ToWide(url.possibly_invalid_spec()).c_str());
 }
 
 }  // namespace child_process_logging