Implement the palette help and options buttons.

ash/common/system/tray/tray_popup_header_button.cc

Index: ash/common/system/tray/tray_popup_header_button.cc
diff --git a/ash/common/system/tray/tray_popup_header_button.cc b/ash/common/system/tray/tray_popup_header_button.cc
index b37cae26076f1f58ca6092d237705f969931ae74..bb15d503600002a69ca0f4375af118ccb5f9873b 100644
--- a/ash/common/system/tray/tray_popup_header_button.cc
+++ b/ash/common/system/tray/tray_popup_header_button.cc
@@ -17,15 +17,29 @@ const char TrayPopupHeaderButton::kViewClassName[] =
     "tray/TrayPopupHeaderButton";
 
 TrayPopupHeaderButton::TrayPopupHeaderButton(views::ButtonListener* listener,
+                                             int icon_resource_id,
+                                             int accessible_name_id)
+    : views::ToggleImageButton(listener) {
+  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
+  SetImage(views::Button::STATE_NORMAL,
+           bundle.GetImageNamed(icon_resource_id).ToImageSkia());
+  SetImageAlignment(views::ImageButton::ALIGN_CENTER,
+                    views::ImageButton::ALIGN_MIDDLE);
+  SetAccessibleName(bundle.GetLocalizedString(accessible_name_id));
+  SetFocusForPlatform();
+
+  SetFocusPainter(views::Painter::CreateSolidFocusPainter(
+      kFocusBorderColor, gfx::Insets(1, 2, 2, 3)));
+}
+
+TrayPopupHeaderButton::TrayPopupHeaderButton(views::ButtonListener* listener,
                                              int enabled_resource_id,
                                              int disabled_resource_id,
                                              int enabled_resource_id_hover,
                                              int disabled_resource_id_hover,
                                              int accessible_name_id)
-    : views::ToggleImageButton(listener) {
+    : TrayPopupHeaderButton(listener, enabled_resource_id, accessible_name_id) {
   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-  SetImage(views::Button::STATE_NORMAL,
-           bundle.GetImageNamed(enabled_resource_id).ToImageSkia());
   SetToggledImage(views::Button::STATE_NORMAL,
                   bundle.GetImageNamed(disabled_resource_id).ToImageSkia());
   SetImage(views::Button::STATE_HOVERED,
@@ -33,13 +47,6 @@ TrayPopupHeaderButton::TrayPopupHeaderButton(views::ButtonListener* listener,
   SetToggledImage(
       views::Button::STATE_HOVERED,
       bundle.GetImageNamed(disabled_resource_id_hover).ToImageSkia());
-  SetImageAlignment(views::ImageButton::ALIGN_CENTER,
-                    views::ImageButton::ALIGN_MIDDLE);
-  SetAccessibleName(bundle.GetLocalizedString(accessible_name_id));
-  SetFocusForPlatform();
-
-  SetFocusPainter(views::Painter::CreateSolidFocusPainter(
-      kFocusBorderColor, gfx::Insets(1, 2, 2, 3)));
 }
 
 TrayPopupHeaderButton::~TrayPopupHeaderButton() {}