Instrument setup.exe in the SyzyAsan builds.

chrome/installer/mini_installer/mini_installer.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.
 
 // mini_installer.exe is the first exe that is run when chrome is being
 // installed or upgraded. It is designed to be extremely small (~5KB with no
 // extra resources linked) and it has two main jobs:
 //   1) unpack the resources (possibly decompressing some)
 //   2) run the real installer (setup.exe) with appropriate flags.
 //
@@ skipping 282 matching lines @@
       return FALSE;
   } else {
     // Resources should either start with 'chrome' or 'setup'. We don't handle
     // anything else.
     return FALSE;
   }
 
   return TRUE;
 }
 
-#if defined(COMPONENT_BUILD)
+#if defined(COMPONENT_BUILD) || defined(SYZYASAN)
 // An EnumResNameProc callback that writes the resource |name| to disk in the
 // directory |base_path_ptr| (which must end with a path separator).
 BOOL CALLBACK WriteResourceToDirectory(HMODULE module,
                                        const wchar_t* type,
                                        wchar_t* name,
                                        LONG_PTR base_path_ptr) {
   const wchar_t* base_path = reinterpret_cast<const wchar_t*>(base_path_ptr);
   PathString full_path;
 
   PEResource resource(name, type, module);
@@ skipping 105 matching lines @@
   ::DeleteFile(setup_path->get());
   if (success) {
     if (!setup_path->assign(setup_dest_path.get())) {
       ::DeleteFile(setup_dest_path.get());
       exit_code = ProcessExitResult(PATH_STRING_OVERFLOW);
     }
   } else {
     exit_code = ProcessExitResult(UNABLE_TO_EXTRACT_SETUP_EXE);
   }
 
-#if defined(COMPONENT_BUILD)
+#if defined(COMPONENT_BUILD) || defined(SYZYASAN)
   if (exit_code.IsSuccess()) {
     // Extract the (uncompressed) modules required by setup.exe.
     if (!::EnumResourceNames(module, kBinResourceType, WriteResourceToDirectory,
                              reinterpret_cast<LONG_PTR>(base_path))) {
       return ProcessExitResult(UNABLE_TO_EXTRACT_SETUP, ::GetLastError());
     }
   }
 #endif
 
   return exit_code;
@@ skipping 419 matching lines @@
     DeleteExtractedFiles(base_path.get(), archive_path.get(), setup_path.get());
 
 #if defined(GOOGLE_CHROME_BUILD)
   WriteInstallResults(configuration, exit_code);
 #endif
 
   return exit_code;
 }
 
 }  // namespace mini_installer