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

ash/frame/header_painter_util.cc

Index: ash/frame/header_painter_util.cc
diff --git a/ash/frame/header_painter_util.cc b/ash/frame/header_painter_util.cc
index 1054291848198ea8e8bf505252d2d3ec162024b0..81a5fbd24e854f41758d041e84f7b735cb423e19 100644
--- a/ash/frame/header_painter_util.cc
+++ b/ash/frame/header_painter_util.cc
@@ -68,17 +68,16 @@ int HeaderPainterUtil::GetThemeBackgroundXInset() {
 
 // static
 gfx::Rect HeaderPainterUtil::GetTitleBounds(
-    const views::View* icon,
-    const views::View* caption_button_container,
+    const views::View* left_view,
+    const views::View* right_view,
     const gfx::FontList& title_font_list) {
-  int x = icon ?
-      icon->bounds().right() + kTitleIconOffsetX : kTitleNoIconOffsetX;
+  int x = left_view ? left_view->bounds().right() + kTitleIconOffsetX
+                    : kTitleNoIconOffsetX;
   int height = title_font_list.GetHeight();
   // Floor when computing the center of |caption_button_container| and when
   // computing the center of the text.
-  int y = std::max(0, (caption_button_container->height() / 2) - (height / 2));
-  int width = std::max(
-      0, caption_button_container->x() - kTitleCaptionButtonSpacing - x);
+  int y = std::max(0, (right_view->height() / 2) - (height / 2));
+  int width = std::max(0, right_view->x() - kTitleCaptionButtonSpacing - x);
   return gfx::Rect(x, y, width, height);
 }