Moves CustomFrameViewAsh to common

ash/aura/wm_window_aura.cc

Index: ash/aura/wm_window_aura.cc
diff --git a/ash/aura/wm_window_aura.cc b/ash/aura/wm_window_aura.cc
index eee64409916de98bcb30ebcf8306f6efedfc25a6..5d925ba952eb1524231b699b5745ecbddde9f7cd 100644
--- a/ash/aura/wm_window_aura.cc
+++ b/ash/aura/wm_window_aura.cc
@@ -17,6 +17,7 @@
 #include "ash/screen_util.h"
 #include "ash/shelf/shelf_util.h"
 #include "ash/shell.h"
+#include "ash/wm/resize_handle_window_targeter.h"
 #include "ash/wm/resize_shadow_controller.h"
 #include "ash/wm/window_animations.h"
 #include "ash/wm/window_mirror_view.h"
@@ -294,6 +295,10 @@ void WmWindowAura::SetIntProperty(WmWindowProperty key, int value) {
     SetShelfIDForWindow(value, window_);
     return;
   }
+  if (key == WmWindowProperty::TOP_VIEW_INSET) {
+    window_->SetProperty(aura::client::kTopViewInset, value);
+    return;
+  }
 
   NOTREACHED();
 }
@@ -649,6 +654,12 @@ void WmWindowAura::HideResizeShadow() {
     resize_shadow_controller->HideShadow(window_);
 }
 
+void WmWindowAura::InstallResizeHandleWindowTargeter(
+    WmImmersiveFullscreenController* immersive_fullscreen_controller) {
+  window_->SetEventTargeter(base::MakeUnique<ResizeHandleWindowTargeter>(
+      window_, immersive_fullscreen_controller));
+}
+
 void WmWindowAura::SetBoundsInScreenBehaviorForChildren(
     BoundsInScreenBehavior behavior) {
   window_->SetProperty(