Split View Mode: Support for the 2-finger bezel scroll.

athena/wm/window_manager_impl.cc

Index: athena/wm/window_manager_impl.cc
diff --git a/athena/wm/window_manager_impl.cc b/athena/wm/window_manager_impl.cc
index 589da390733ec1ecf3999c24c0b16278b8b5d35c..04d7a05b88381140f9110dc9fc1eb261795d5fb0 100644
--- a/athena/wm/window_manager_impl.cc
+++ b/athena/wm/window_manager_impl.cc
@@ -5,6 +5,8 @@
 #include "athena/wm/public/window_manager.h"
 
 #include "athena/screen/public/screen_manager.h"
+#include "athena/wm/bezel_controller.h"
+#include "athena/wm/split_view_controller.h"
 #include "athena/wm/window_overview_mode.h"
 #include "base/logging.h"
 #include "ui/aura/layout_manager.h"
@@ -48,6 +50,8 @@ class WindowManagerImpl : public WindowManager,
   scoped_ptr<aura::Window> container_;
   scoped_ptr<ui::EventHandler> temp_handler_;
   scoped_ptr<WindowOverviewMode> overview_;
+  scoped_ptr<BezelController> bezel_controller_;
+  scoped_ptr<SplitViewController> split_view_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerImpl);
 };
@@ -101,10 +105,14 @@ class TempEventHandler : public ui::EventHandler {
 
 WindowManagerImpl::WindowManagerImpl()
     : container_(ScreenManager::Get()->CreateDefaultContainer("MainContainer")),
-      temp_handler_(new TempEventHandler()) {
+      temp_handler_(new TempEventHandler()),
+      bezel_controller_(new BezelController(container_.get())),
+      split_view_controller_(new SplitViewController()) {
   container_->SetLayoutManager(new AthenaContainerLayoutManager);
   container_->AddObserver(this);
   container_->AddPreTargetHandler(temp_handler_.get());
+  container_->AddPreTargetHandler(bezel_controller_.get());
+  bezel_controller_->set_left_right_delegate(split_view_controller_.get());
   instance = this;
 }