Makes the maximize/restore button handling

chrome/browser/ui/views/frame/browser_non_client_frame_view_aura.cc

Index: chrome/browser/ui/views/frame/browser_non_client_frame_view_aura.cc
diff --git a/chrome/browser/ui/views/frame/browser_non_client_frame_view_aura.cc b/chrome/browser/ui/views/frame/browser_non_client_frame_view_aura.cc
index 3bcca0c45d4f8014ff611326bba19561dbe6f4d0..16def5252cc5ab05a4c2d23a3a0fb07d6cacf84d 100644
--- a/chrome/browser/ui/views/frame/browser_non_client_frame_view_aura.cc
+++ b/chrome/browser/ui/views/frame/browser_non_client_frame_view_aura.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/ui/views/frame/browser_non_client_frame_view_aura.h"
 
 #include "ash/wm/frame_painter.h"
+#include "ash/wm/workspace/frame_maximize_button.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
@@ -52,7 +53,7 @@ BrowserNonClientFrameViewAura::~BrowserNonClientFrameViewAura() {
 
 void BrowserNonClientFrameViewAura::Init() {
   // Caption buttons.
-  maximize_button_ = new views::ImageButton(this);
+  maximize_button_ = new ash::FrameMaximizeButton(this);
   maximize_button_->SetAccessibleName(
       l10n_util::GetStringUTF16(IDS_ACCNAME_MAXIMIZE));
   AddChildView(maximize_button_);