Add enableReferrers and enableHyperlinkAuditing to contentSettings.misc API.

chrome/browser/renderer_host/browser_render_process_host.h

Index: chrome/browser/renderer_host/browser_render_process_host.h
diff --git a/chrome/browser/renderer_host/browser_render_process_host.h b/chrome/browser/renderer_host/browser_render_process_host.h
index 9de0b0c66d6230d003d34299e85333fe770b78d5..198bfb5ef7c01df5353673e9d4e3c1c5587cb658 100644
--- a/chrome/browser/renderer_host/browser_render_process_host.h
+++ b/chrome/browser/renderer_host/browser_render_process_host.h
@@ -15,6 +15,7 @@
 #include "base/platform_file.h"
 #include "base/process.h"
 #include "base/timer.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/browser/child_process_launcher.h"
 #include "content/browser/renderer_host/render_process_host.h"
@@ -26,6 +27,7 @@
 class CommandLine;
 class RendererMainThread;
 class RenderWidgetHelper;
+class ResourceMessageFilter;
 class VisitedLinkUpdater;
 
 namespace base {
@@ -165,6 +167,9 @@ class BrowserRenderProcessHost : public RenderProcessHost,
   // the model file.
   void OpenPhishingModelDone(base::PlatformFile model_file);
 
+  // Tells the ResourceMessageFilter whether to enable referrers.
+  void UpdateReferrersEnabled();
+
   NotificationRegistrar registrar_;
 
   // The count of currently visible widgets.  Since the host can be a container
@@ -206,6 +211,12 @@ class BrowserRenderProcessHost : public RenderProcessHost,
   // when running in single-process mode.
   bool extension_process_;
 
+  // Observes the |kEnableReferrers| preference.
+  PrefChangeRegistrar pref_change_registrar_;
+
+  // Weak, owned by |channel_|.

[jam, 2011/03/29 18:17:16]

what happens if OnChannelError() is called?  channel_ will be reset and this
filter will be deleted.  so if you want to hold a pointer to it, use a
scoped_refptr

[Bernhard Bauer, 2011/03/29 19:26:58]

I guess I should set the pointer to NULL in OnChannelError() then? I don't want
to hold on to the old ResourceMessageFilter after the channel is closed.

+  ResourceMessageFilter* resource_message_filter_;
+
   // The Extension for the hosted or packaged app if any, NULL otherwise.
   scoped_refptr<const Extension> installed_app_;