aura: Remove client::UserActionClient.

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

Index: chrome/browser/ui/views/frame/desktop_browser_frame_aura.cc
diff --git a/chrome/browser/ui/views/frame/desktop_browser_frame_aura.cc b/chrome/browser/ui/views/frame/desktop_browser_frame_aura.cc
index e632526b4c30e8c8550d415be89938695102d43b..2e87976abf61bff47a0daca8c9a1d172d0712c8a 100644
--- a/chrome/browser/ui/views/frame/desktop_browser_frame_aura.cc
+++ b/chrome/browser/ui/views/frame/desktop_browser_frame_aura.cc
@@ -8,7 +8,6 @@
 #include "chrome/browser/ui/views/frame/browser_desktop_window_tree_host.h"
 #include "chrome/browser/ui/views/frame/browser_shutdown.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
-#include "chrome/browser/ui/views/frame/desktop_user_action_handler_aura.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "ui/aura/client/aura_constants.h"
@@ -68,11 +67,6 @@ void DesktopBrowserFrameAura::InitNativeWidget(
       browser_desktop_window_tree_host_->AsDesktopWindowTreeHost();
   DesktopNativeWidgetAura::InitNativeWidget(modified_params);
 
-  user_action_client_.reset(
-      new DesktopUserActionHandlerAura(browser_view_->browser()));
-  aura::client::SetUserActionClient(GetNativeView()->GetRootWindow(),
-                                    user_action_client_.get());
-
   visibility_controller_.reset(new views::corewm::VisibilityController);
   aura::client::SetVisibilityClient(GetNativeView()->GetRootWindow(),
                                     visibility_controller_.get());