Revert 263043 "Remove obsolete scale related APIs for cursor"

trunk/src/ui/wm/core/cursor_manager.cc

Index: trunk/src/ui/wm/core/cursor_manager.cc
===================================================================
--- trunk/src/ui/wm/core/cursor_manager.cc	(revision 263047)
+++ trunk/src/ui/wm/core/cursor_manager.cc	(working copy)
@@ -21,6 +21,7 @@
   CursorState()
       : cursor_(ui::kCursorNone),
         visible_(true),
+        scale_(1.f),
         cursor_set_(ui::CURSOR_SET_NORMAL),
         mouse_events_enabled_(true),
         visible_on_mouse_events_enabled_(true) {
@@ -36,6 +37,11 @@
     // Ignores the call when mouse events disabled.
   }
 
+  float scale() const { return scale_; }
+  void set_scale(float scale) {
+    scale_ = scale;
+  }
+
   ui::CursorSetType cursor_set() const { return cursor_set_; }
   void set_cursor_set(ui::CursorSetType cursor_set) {
     cursor_set_ = cursor_set;
@@ -59,6 +65,7 @@
  private:
   gfx::NativeCursor cursor_;
   bool visible_;
+  float scale_;
   ui::CursorSetType cursor_set_;
   bool mouse_events_enabled_;
 
@@ -116,6 +123,16 @@
   return current_state_->visible();
 }
 
+void CursorManager::SetScale(float scale) {
+  state_on_unlock_->set_scale(scale);
+  if (GetScale() != state_on_unlock_->scale())
+    delegate_->SetScale(state_on_unlock_->scale(), this);
+}
+
+float CursorManager::GetScale() const {
+  return current_state_->scale();
+}
+
 void CursorManager::SetCursorSet(ui::CursorSetType cursor_set) {
   state_on_unlock_->set_cursor_set(cursor_set);
   if (GetCursorSet() != state_on_unlock_->cursor_set())
@@ -206,6 +223,10 @@
   current_state_->SetVisible(visible);
 }
 
+void CursorManager::CommitScale(float scale) {
+  current_state_->set_scale(scale);
+}
+
 void CursorManager::CommitCursorSet(ui::CursorSetType cursor_set) {
   current_state_->set_cursor_set(cursor_set);
 }