Implement the palette help and options buttons.

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
index 4ed3cf92f62311f26b5209367cbb323b8cf01b6b..904de32c1c20ba2169a61f01df6fcb5297f488c8 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -136,6 +136,7 @@ const int kSessionLengthLimitMaxMs = 24 * 60 * 60 * 1000;  // 24 hours.
 
 const char kDisplaySettingsSubPageName[] = "display";
 const char kDisplayOverscanSettingsSubPageName[] = "displayOverscan";
+const char kPaletteSettingsSubPageName[] = "note-overlay";
 
 void ExtractIMEInfo(const input_method::InputMethodDescriptor& ime,
                     const input_method::InputMethodUtil& util,
@@ -520,6 +521,18 @@ void SystemTrayDelegateChromeOS::ShowAccessibilitySettings() {
   ShowSettingsSubPageForActiveUser(sub_page);
 }
 
+void SystemTrayDelegateChromeOS::ShowPaletteHelp() {
+  chrome::ScopedTabbedBrowserDisplayer displayer(
+      ProfileManager::GetActiveUserProfile());
+  chrome::ShowSingletonTab(displayer.browser(),
+                           GURL(chrome::kChromePaletteHelpURL));
+}
+
+void SystemTrayDelegateChromeOS::ShowPaletteSettings() {
+  content::RecordAction(base::UserMetricsAction("ShowPaletteOptions"));
+  ShowSettingsSubPageForActiveUser(kPaletteSettingsSubPageName);
+}
+
 void SystemTrayDelegateChromeOS::ShowPublicAccountInfo() {
   chrome::ScopedTabbedBrowserDisplayer displayer(
       ProfileManager::GetActiveUserProfile());