Remove usages of RootView from View by moving relevant RootView API methods t...

views/widget/widget_impl.cc

Index: views/widget/widget_impl.cc
===================================================================
--- views/widget/widget_impl.cc	(revision 75181)
+++ views/widget/widget_impl.cc	(working copy)
@@ -7,6 +7,7 @@
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "views/focus/focus_manager.h"
+#include "views/focus/view_storage.h"
 #include "views/view.h"
 #include "views/widget/native_widget.h"
 #include "views/widget/root_view.h"
@@ -53,7 +54,8 @@
       is_mouse_button_pressed_(false),
       last_mouse_event_was_move_(false),
       ALLOW_THIS_IN_INITIALIZER_LIST(close_widget_factory_(this)),
-      delete_on_destroy_(true) {
+      delete_on_destroy_(true),
+      dragged_view_(NULL) {
 }
 
 WidgetImpl::~WidgetImpl() {
@@ -365,7 +367,14 @@
 }
 
 void WidgetImpl::ViewHierarchyChanged(bool is_add, View* parent, View* child) {
-  NOTIMPLEMENTED();
+  if (!is_add) {
+    if (child == dragged_view_)
+      dragged_view_ = NULL;
+    FocusManager* focus_manager = GetFocusManager();
+    if (focus_manager)
+      focus_manager->ViewRemoved(parent, child);
+    ViewStorage::GetInstance()->ViewRemoved(parent, child);
+  }
 }
 
 bool WidgetImpl::ContainsNativeView(gfx::NativeView native_view) {
@@ -373,6 +382,26 @@
   return false;
 }
 
+void WidgetImpl::StartDragForViewFromMouseEvent(
+    View* view,
+    const OSExchangeData& data,
+    int operation) {
+  // NOTE: view may be NULL.
+  dragged_view_ = view;
+  native_widget_->RunShellDrag(data, operation);
+
+  // If the view is removed during the drag operation, dragged_view_ is set to
+  // NULL.
+  if (view && dragged_view_ == view) {
+    dragged_view_ = NULL;
+    view->OnDragDone();
+  }
+}
+
+View* WidgetImpl::GetDraggedView() {
+  return dragged_view_;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WidgetImpl, private: