Implement the load chrome.dll before file version for Google Chrome builds.

chrome/app/google_update_client.h

Index: chrome/app/google_update_client.h
===================================================================
--- chrome/app/google_update_client.h	(revision 5105)
+++ chrome/app/google_update_client.h	(working copy)
@@ -41,12 +41,15 @@
   // not registered, autoupdates won't be performed for this client.
   bool Init(const wchar_t* client_guid, const wchar_t* client_dll);
 
+  // Load the application's main DLL.
+  // - looks up the registered version via GoogleUpdate, loads dll from version
+  //   dir (e.g. Program Files/Google/1.0.101.0/chrome.dll).  If chrome.dll is
+  //   found in this path the version is stored in the environment block such
+  //   that subsequent launches invoke the same dll version.
+  bool Load();
+
   // Launches your app's main code and initializes Google Update services.
-  // - looks up the registered version via GoogleUpdate, loads dll from version
-  //   dir (e.g. Program Files/Google/1.0.101.0/chrome.dll) and calls the
-  //   entry_name. If chrome.dll is found in this path the version is stored
-  //   in the environment block such that subsequent launches invoke the
-  //   save dll version.
+  // - Calls the entry_name function of your application's DLL.
   // - instance is handle to the current instance of application
   // - sandbox provides information about sandbox services
   // - command_line contains command line parameters
@@ -68,6 +71,8 @@
   std::wstring guid_;
   // The name of the dll to load.
   std::wstring dll_;
+  // The handle to dll_ after it has been loaded.
+  HINSTANCE dll_handle_;
   // The current version of this client registered with GoogleUpdate.
   wchar_t* version_;
   // The location of current chrome.dll.