Show "About panel" bubble on Windows.

chrome/browser/ui/panels/panel_browser_frame_view.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_browser_frame_view.h"
 
 #include "chrome/browser/themes/theme_service.h"
+#include "chrome/browser/ui/panels/about_panel_bubble.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_browser_view.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "grit/app_resources.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "grit/theme_resources_standard.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
 #include "ui/base/accessibility/accessible_view_state.h"
@@ skipping 329 matching lines @@
   CreateOrUpdateOptionsMenu();
   options_menu_->RunMenuAt(pt, views::Menu2::ALIGN_TOPRIGHT);
 }
 
 bool PanelBrowserFrameView::IsCommandIdChecked(int command_id) const {
   // Nothing in the menu is checked.
   return false;
 }
 
 bool PanelBrowserFrameView::IsCommandIdEnabled(int command_id) const {
-  // All the menu options are always enabled.
+  // If the panel originator is not provided, disable "About this panel".
+  // Currently this is not possible.
+  if (command_id == COMMAND_ABOUT && !browser_view_->panel()->originator()) {
+    NOTREACHED();
+    return false;
+  }
   return true;
 }
 
 bool PanelBrowserFrameView::GetAcceleratorForCommandId(
     int command_id, ui::Accelerator* accelerator) {
   return false;
 }
 
 void PanelBrowserFrameView::ExecuteCommand(int command_id) {
   switch (command_id) {
     case COMMAND_MINIMIZE_ALL:
       browser_view_->panel()->manager()->MinimizeAll();
       break;
     case COMMAND_RESTORE_ALL:
       browser_view_->panel()->manager()->RestoreAll();
       break;
     case COMMAND_CLOSE_ALL:
       browser_view_->panel()->manager()->RemoveAllActive();
       break;
-    case COMMAND_ABOUT:
-      NOTIMPLEMENTED();
+    case COMMAND_ABOUT: {
+      gfx::Point origin(options_button_->bounds().origin());
+      views::View::ConvertPointToScreen(this, &origin);
+      AboutPanelBubble::Show(
+          GetWidget(),
+          gfx::Rect(origin, options_button_->bounds().size()),
+          BubbleBorder::BOTTOM_RIGHT,
+          GetFaviconForTabIconView(),
+          browser_view_->panel()->originator());
       break;
+    }
     default:
       NOTREACHED();
       break;
   }
 }
 
 bool PanelBrowserFrameView::ShouldTabIconViewAnimate() const {
   // This function is queried during the creation of the window as the
   // TabIconView we host is initialized, so we need to NULL check the selected
   // TabContents because in this condition there is not yet a selected tab.
@@ skipping 183 matching lines @@
         COMMAND_CLOSE_ALL,
         l10n_util::GetStringUTF16(IDS_PANEL_OPTIONS_MENU_CLOSE_ALL));
     options_menu_contents_->AddSeparator();
   }
 
   options_menu_contents_->AddItem(
       COMMAND_ABOUT, l10n_util::GetStringUTF16(IDS_PANEL_OPTIONS_MENU_ABOUT));
 
   return rebuild_menu;
 }