Experimentally isolate GetOpenFileName in a utility process.

chrome/utility/chrome_content_utility_client.cc

Index: chrome/utility/chrome_content_utility_client.cc
diff --git a/chrome/utility/chrome_content_utility_client.cc b/chrome/utility/chrome_content_utility_client.cc
index c7d189f05bcf6b3b5ffd7a594ec88c4b75232f7a..e2413f864945a4583ee54660193549e2287c1e80 100644
--- a/chrome/utility/chrome_content_utility_client.cc
+++ b/chrome/utility/chrome_content_utility_client.cc
@@ -27,6 +27,10 @@
 #include "chrome/utility/profile_import_handler.h"
 #endif
 
+#if defined(OS_WIN)
+#include "chrome/utility/shell_handler_win.h"
+#endif
+
 #if defined(ENABLE_EXTENSIONS)
 #include "chrome/common/extensions/chrome_utility_extensions_messages.h"
 #include "chrome/utility/extensions/extensions_handler.h"
@@ -87,6 +91,10 @@ ChromeContentUtilityClient::ChromeContentUtilityClient()
     handlers_.push_back(new local_discovery::ServiceDiscoveryMessageHandler());
   }
 #endif
+
+#if defined(OS_WIN)
+  handlers_.push_back(new ShellHandler());
+#endif
 }
 
 ChromeContentUtilityClient::~ChromeContentUtilityClient() {