Changing the pre-reading of chrome.dll to read it as an image section instead...

base/file_util_win.cc

 // Copyright (c) 2010 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/file_util.h"
 
 #include <windows.h>
 #include <propvarutil.h>
 #include <psapi.h>
 #include <shellapi.h>
 #include <shlobj.h>
 #include <time.h>
 #include <string>
 
 #include "base/file_path.h"
 #include "base/logging.h"
+#include "base/pe_image.h"
 #include "base/scoped_comptr_win.h"
 #include "base/scoped_handle.h"
 #include "base/string_util.h"
 #include "base/time.h"
 #include "base/win_util.h"
 
 namespace file_util {
 
 namespace {
 
@@ skipping 999 matching lines @@
     // "\Device\Harddisk...".  Helper DevicePathToDriveLetterPath()
     // will find a drive letter which maps to the path's device, so
     // that we return a path starting with a drive letter.
     FilePath mapped_file(mapped_file_path);
     success = DevicePathToDriveLetterPath(mapped_file, real_path);
   }
   UnmapViewOfFile(file_view);
   return success;
 }
 
+bool PreReadImage(const wchar_t* file_path, size_t size_to_read,
+                  size_t step_size) {
+  HMODULE dll_module = LoadLibraryExW(
+      file_path,
+      NULL,
+      LOAD_WITH_ALTERED_SEARCH_PATH | DONT_RESOLVE_DLL_REFERENCES);
+
+  if (!dll_module)
+    return false;
+
+  PEImage pe_image(dll_module);
+  PIMAGE_NT_HEADERS nt_headers = pe_image.GetNTHeaders();
+  size_t actual_size_to_read = size_to_read ? size_to_read :
+                               nt_headers->OptionalHeader.SizeOfImage;
+  volatile uint8* touch = reinterpret_cast<uint8*>(dll_module);
+  size_t offset = 0;
+  while (offset < actual_size_to_read) {
+    uint8 unused = *(touch + offset);
+    offset += step_size;
+  }
+  FreeLibrary(dll_module);
+  return true;
+}
+
 }  // namespace file_util