Use a valid /prefetch argument when launching a process.

components/crash/content/app/BUILD.gn

Index: components/crash/content/app/BUILD.gn
diff --git a/components/crash/content/app/BUILD.gn b/components/crash/content/app/BUILD.gn
index f08809045b010d49c3b72828ef2db942df633d25..3383e4c6f9d80739c996cdb409530372bd747aa5 100644
--- a/components/crash/content/app/BUILD.gn
+++ b/components/crash/content/app/BUILD.gn
@@ -49,6 +49,13 @@ source_set("app") {
   ]
 
   deps += [ ":lib" ]
+  if (is_win) {
+    deps += [
+      # TODO(fdoray): Remove this once the PreRead field trial has expired.
+      # crbug.com/577698
+      "//components/startup_metric_utils/common",
+    ]
+  }
   if (is_mac || is_win) {
     deps += [ "//third_party/crashpad/crashpad/client" ]
   }