Introduce new WebApp header style for hosted apps and fizzy apps on ash.

ash/frame/custom_frame_view_ash.cc

Index: ash/frame/custom_frame_view_ash.cc
diff --git a/ash/frame/custom_frame_view_ash.cc b/ash/frame/custom_frame_view_ash.cc
index eb20914cc84e356b09b1bd3f4cdb0ad53d2ba1c9..31d5772bb70bd868ac07c2d67f7a7f86e76bbd8a 100644
--- a/ash/frame/custom_frame_view_ash.cc
+++ b/ash/frame/custom_frame_view_ash.cc
@@ -13,6 +13,7 @@
 #include "ash/frame/frame_border_hit_test_controller.h"
 #include "ash/frame/frame_util.h"
 #include "ash/frame/header_painter.h"
+#include "ash/frame/header_painter_util.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_observer.h"
@@ -211,7 +212,7 @@ CustomFrameViewAsh::HeaderView::HeaderView(views::Widget* frame)
   caption_button_container_->UpdateSizeButtonVisibility();
   AddChildView(caption_button_container_);
 
-  header_painter_->Init(frame_, this, NULL, caption_button_container_);
+  header_painter_->Init(frame_, this, caption_button_container_);
   UpdateAvatarIcon();
 
   Shell::GetInstance()->AddShellObserver(this);
@@ -268,7 +269,7 @@ void CustomFrameViewAsh::HeaderView::UpdateAvatarIcon() {
     avatar_icon_->SetImage(image);
     icon_size = image.width();
   }
-  header_painter_->UpdateWindowIcon(avatar_icon_, icon_size);
+  header_painter_->UpdateLeftHeaderView(avatar_icon_, icon_size);
   Layout();
 }