Fix the problem that notifications and panels overlap.

chrome/browser/ui/panels/panel_manager.cc

 // Copyright (c) 2011 The Chromium 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 "chrome/browser/ui/panels/panel_manager.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/window_sizer.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/browser/notification_source.h"
 
 namespace {
 // Invalid panel index.
 const size_t kInvalidPanelIndex = static_cast<size_t>(-1);
 
 // Width of spacing between first panel and the right edge of the screen.
 // Leaving a larger gap at the edge of the screen allows access to UI
 // elements located on the bottom right of windows.
 const int kRightScreenEdgeSpacingWidth = 24;
 
@@ skipping 95 matching lines @@
   else if (height > max_panel_height)
     height = max_panel_height;
 
   int y = adjusted_work_area_.bottom() - height;
   int x = GetRightMostAvailablePosition() - width;
 
   // Now create the panel with the computed bounds.
   Panel* panel = new Panel(browser, gfx::Rect(x, y, width, height));
   panel->SetMaxSize(gfx::Size(max_panel_width, max_panel_height));
   panels_.push_back(panel);
+
+  content::NotificationService::current()->Notify(
+      chrome::NOTIFICATION_PANEL_ADDED,
+      content::Source<Panel>(panel),
+      content::NotificationService::NoDetails());
+
   return panel;
 }
 
 int PanelManager::GetMaxPanelWidth() const {
   return static_cast<int>(adjusted_work_area_.width() * kPanelMaxWidthFactor);
 }
 
 int PanelManager::GetMaxPanelHeight() const {
   return static_cast<int>(adjusted_work_area_.height() * kPanelMaxHeightFactor);
 }
@@ skipping 26 matching lines @@
 void PanelManager::DoRemove(Panel* panel) {
   Panels::iterator iter = find(panels_.begin(), panels_.end(), panel);
   if (iter == panels_.end())
     return;
 
   if (panel->expansion_state() != Panel::EXPANDED)
     DecrementMinimizedPanels();
 
   gfx::Rect bounds = (*iter)->GetBounds();
   Rearrange(panels_.erase(iter), bounds.right());
+
+  content::NotificationService::current()->Notify(
+      chrome::NOTIFICATION_PANEL_REMOVED,
+      content::Source<Panel>(panel),
+      content::NotificationService::NoDetails());
 }
 
 void PanelManager::StartDragging(Panel* panel) {
   for (size_t i = 0; i < panels_.size(); ++i) {
     if (panels_[i] == panel) {
       dragging_panel_index_ = i;
       dragging_panel_bounds_ = panel->GetBounds();
       dragging_panel_original_x_ = dragging_panel_bounds_.x();
       break;
     }
@@ skipping 419 matching lines @@
   // Start from the bottom to avoid reshuffling.
   for (Panels::reverse_iterator iter = panels_copy.rbegin();
        iter != panels_copy.rend(); ++iter)
     (*iter)->Close();
 }
 
 bool PanelManager::is_dragging_panel() const {
   return dragging_panel_index_ != kInvalidPanelIndex;
 }