Bring up a content settings icon for ungestured registerProtocolHandler call.

chrome/browser/ui/browser_content_setting_bubble_model_delegate.cc

Index: chrome/browser/ui/browser_content_setting_bubble_model_delegate.cc
diff --git a/chrome/browser/ui/browser_content_setting_bubble_model_delegate.cc b/chrome/browser/ui/browser_content_setting_bubble_model_delegate.cc
index c2a7cf71b5f2208d4206a7581a2790cfe375f3d7..1afbaff159f00c25d5d5e8354f14f1b43a4017f7 100644
--- a/chrome/browser/ui/browser_content_setting_bubble_model_delegate.cc
+++ b/chrome/browser/ui/browser_content_setting_bubble_model_delegate.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/browser/ui/chrome_pages.h"
+#include "chrome/common/url_constants.h"
 
 // The URL for when the user clicks "learn more" on the mixed scripting page
 // icon bubble.
@@ -35,7 +36,13 @@ void BrowserContentSettingBubbleModelDelegate::ShowContentSettingsPage(
     GURL url(google_util::AppendGoogleLocaleParam(
         GURL(kInsecureScriptHelpUrl)));
     browser_->AddSelectedTabWithURL(url, content::PAGE_TRANSITION_LINK);
-  } else {
-    chrome::ShowContentSettings(browser_, type);
+    return;
   }
+
+  if (type == CONTENT_SETTINGS_TYPE_PROTOCOL_HANDLERS) {
+    chrome::ShowSettingsSubPage(browser_, chrome::kHandlerSettingsSubPage);
+    return;
+  }
+
+  chrome::ShowContentSettings(browser_, type);
 }