wm: Fix override-redirect window stacking bug.

src/platform/window_manager/mock_compositor.cc

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "window_manager/compositor.h"
 
 #include "base/logging.h"
 #include "window_manager/util.h"
 #include "window_manager/x_connection.h"
 
 using std::list;
+using std::string;
 
 namespace window_manager {
 
 MockCompositor::Actor::~Actor() {
   if (parent_) {
     parent_->stacked_children()->Remove(this);
     parent_ = NULL;
   }
 }
 
@@ skipping 28 matching lines @@
   parent_->stacked_children()->AddOnTop(this);
 }
 
 void MockCompositor::Actor::LowerToBottom() {
   CHECK(parent_);
   CHECK(parent_->stacked_children()->Contains(this));
   parent_->stacked_children()->Remove(this);
   parent_->stacked_children()->AddOnBottom(this);
 }
 
+string MockCompositor::Actor::GetDebugString(int indent_level) {
+  string out;
+  out.assign(indent_level * 2, ' ');
+  out += (!name_.empty() ? name_ : "unnamed actor") + "\n";
+  return out;
+}
+
 
 MockCompositor::ContainerActor::ContainerActor()
     : stacked_children_(new Stacker<Actor*>) {
 }
 
 MockCompositor::ContainerActor::~ContainerActor() {
   typedef list<Actor*>::const_iterator iterator;
 
   for (iterator it = stacked_children_->items().begin();
        it != stacked_children_->items().end(); ++it) {
     (*it)->set_parent(NULL);
   }
 }
 
+string MockCompositor::ContainerActor::GetDebugString(int indent_level) {
+  string out = Actor::GetDebugString(indent_level);
+  for (list<Actor*>::const_iterator it = stacked_children_->items().begin();
+       it != stacked_children_->items().end(); ++it) {
+    out += (*it)->GetDebugString(indent_level + 1);
+  }
+  return out;
+}
+
 void MockCompositor::ContainerActor::AddActor(Compositor::Actor* actor) {
   MockCompositor::Actor* cast_actor =
       dynamic_cast<MockCompositor::Actor*>(actor);
   CHECK(cast_actor);
   CHECK(cast_actor->parent() == static_cast<ContainerActor*>(NULL));
   cast_actor->set_parent(this);
   CHECK(!stacked_children_->Contains(cast_actor));
   stacked_children_->AddOnTop(cast_actor);
 }
 
@@ skipping 14 matching lines @@
   memcpy(alpha_mask_bytes_, bytes, size);
   return true;
 }
 
 void MockCompositor::TexturePixmapActor::ClearAlphaMask() {
   delete[] alpha_mask_bytes_;
   alpha_mask_bytes_ = NULL;
 }
 
 }  // namespace window_manager