Add 'App Size' to App Info Dialog

chrome/browser/ui/views/apps/app_info_dialog/app_info_summary_panel.h

Index: chrome/browser/ui/views/apps/app_info_dialog/app_info_summary_panel.h
diff --git a/chrome/browser/ui/views/apps/app_info_dialog/app_info_summary_panel.h b/chrome/browser/ui/views/apps/app_info_dialog/app_info_summary_panel.h
index 0466cab3732a22bac44d5d7ca11ea6238b131caf..417cd99bc07e7a3a36e52cfcdebfe4c5a5aeaf9b 100644
--- a/chrome/browser/ui/views/apps/app_info_dialog/app_info_summary_panel.h
+++ b/chrome/browser/ui/views/apps/app_info_dialog/app_info_summary_panel.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_UI_VIEWS_APPS_APP_INFO_DIALOG_APP_INFO_SUMMARY_PANEL_H_
 
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "chrome/browser/ui/views/apps/app_info_dialog/app_info_panel.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "ui/views/controls/combobox/combobox_listener.h"
@@ -25,7 +26,8 @@ class Label;
 // The summary panel of the app info dialog, which provides basic information
 // and controls related to the app.
 class AppInfoSummaryPanel : public AppInfoPanel,
-                            public views::ComboboxListener {
+                            public views::ComboboxListener,
+                            public base::SupportsWeakPtr<AppInfoSummaryPanel> {
  public:
   AppInfoSummaryPanel(Profile* profile, const extensions::Extension* app);
 
@@ -43,6 +45,11 @@ class AppInfoSummaryPanel : public AppInfoPanel,
   // Overridden from views::ComboboxListener:
   virtual void OnPerformAction(views::Combobox* combobox) OVERRIDE;
 
+  // Called asynchronously to calculate and update the size of the app displayed
+  // in the dialog.
+  void StartCalculatingAppSize();
+  void OnAppSizeCalculated(int64 app_size_in_bytes);
+
   // Returns the time this app was installed.
   base::Time GetInstalledTime() const;
 
@@ -63,6 +70,8 @@ class AppInfoSummaryPanel : public AppInfoPanel,
   views::Label* description_label_;
 
   views::Label* details_heading_;
+  views::Label* size_title_;
+  views::Label* size_value_;
   views::Label* version_title_;
   views::Label* version_value_;
   views::Label* installed_time_title_;
@@ -73,6 +82,8 @@ class AppInfoSummaryPanel : public AppInfoPanel,
   scoped_ptr<LaunchOptionsComboboxModel> launch_options_combobox_model_;
   views::Combobox* launch_options_combobox_;
 
+  base::WeakPtrFactory<AppInfoSummaryPanel> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(AppInfoSummaryPanel);
 };