Make --allow-cross-domain-auth-prompt equivalent to a preference.

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
===================================================================
--- chrome/browser/browser_process_impl.cc	(revision 86721)
+++ chrome/browser/browser_process_impl.cc	(working copy)
@@ -672,12 +672,15 @@
         ShellIntegration::SetAsDefaultBrowser();
     } else if (*pref == prefs::kDisabledSchemes) {
       ApplyDisabledSchemesPolicy();
+    } else if (*pref == prefs::kAllowCrossOriginAuthPrompt) {
+      ApplyAllowCrossOriginAuthPromptPolicy();
     }
   } else {
     NOTREACHED();
   }
 }
 
+

[jam, 2011/05/25 23:25:22]

nit

 void BrowserProcessImpl::WaitForPluginDataRemoverToFinish() {
   if (plugin_data_remover_.get())
     plugin_data_remover_->Wait();
@@ -944,6 +947,11 @@
   local_state_->RegisterListPref(prefs::kDisabledSchemes);
   pref_change_registrar_.Add(prefs::kDisabledSchemes, this);
   ApplyDisabledSchemesPolicy();
+
+  // This is needed under content/, so it can't register itself.

[jam, 2011/05/25 23:25:22]

nit: this comment is a little off.  content doesn't know or care about prefs. 
it's chrome that wants to tell content to change behavior.

+  local_state_->RegisterBooleanPref(prefs::kAllowCrossOriginAuthPrompt, false);
+  pref_change_registrar_.Add(prefs::kAllowCrossOriginAuthPrompt, this);
+  ApplyAllowCrossOriginAuthPromptPolicy();
 }
 
 void BrowserProcessImpl::CreateIconManager() {
@@ -1051,6 +1059,11 @@
   ChildProcessSecurityPolicy::GetInstance()->RegisterDisabledSchemes(schemes);
 }
 
+void BrowserProcessImpl::ApplyAllowCrossOriginAuthPromptPolicy() {
+  bool value = local_state()->GetBoolean(prefs::kAllowCrossOriginAuthPrompt);
+  ResourceDispatcherHost::set_allow_cross_origin_auth_prompt(value);
+}
+
 // The BrowserProcess object must outlive the file thread so we use traits
 // which don't do any management.
 DISABLE_RUNNABLE_METHOD_REFCOUNT(BrowserProcessImpl);