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

ash/wm/panels/panel_frame_view.cc

Index: ash/wm/panels/panel_frame_view.cc
diff --git a/ash/wm/panels/panel_frame_view.cc b/ash/wm/panels/panel_frame_view.cc
index a6e082270a0516143b2868bf13fc9ffefaf41954..95fbac6e052f900b081387504a5efaf9cdf2778e 100644
--- a/ash/wm/panels/panel_frame_view.cc
+++ b/ash/wm/panels/panel_frame_view.cc
@@ -7,6 +7,7 @@
 #include "ash/frame/caption_buttons/frame_caption_button_container_view.h"
 #include "ash/frame/default_header_painter.h"
 #include "ash/frame/frame_border_hit_test_controller.h"
+#include "ash/frame/header_painter_util.h"
 #include "grit/ash_resources.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -45,12 +46,13 @@ void PanelFrameView::InitHeaderPainter() {
       FrameCaptionButtonContainerView::MINIMIZE_ALLOWED);
   AddChildView(caption_button_container_);
 
+  header_painter_->Init(frame_, this, caption_button_container_);
+
   if (frame_->widget_delegate()->ShouldShowWindowIcon()) {
     window_icon_ = new views::ImageView();
     AddChildView(window_icon_);
+    header_painter_->UpdateLeftHeaderView(window_icon_);
   }
-
-  header_painter_->Init(frame_, this, window_icon_, caption_button_container_);
 }
 
 int PanelFrameView::NonClientTopBorderHeight() const {