Extension/Platform App window isolation

chrome/browser/ui/extensions/shell_window.cc

Index: chrome/browser/ui/extensions/shell_window.cc
diff --git a/chrome/browser/ui/extensions/shell_window.cc b/chrome/browser/ui/extensions/shell_window.cc
index 701e97cb557041b8f1161ba30a8407ee62d34b9e..2c93c9fa920058659bcae2ec5aa041ec78b83bc0 100644
--- a/chrome/browser/ui/extensions/shell_window.cc
+++ b/chrome/browser/ui/extensions/shell_window.cc
@@ -45,6 +45,8 @@ class ShellWindowController : public ExtensionWindowController {
   virtual bool CanClose(Reason* reason) const OVERRIDE;
   virtual void SetFullscreenMode(bool is_fullscreen,
                                  const GURL& extension_url) const OVERRIDE;
+  virtual bool IsVisibleToExtension(
+      const extensions::Extension* extension) const OVERRIDE;
 
  private:
   ShellWindow* shell_window_;
@@ -81,6 +83,11 @@ void ShellWindowController::SetFullscreenMode(bool is_fullscreen,
   // TODO(mihaip): implement
 }
 
+bool ShellWindowController::IsVisibleToExtension(
+    const extensions::Extension* extension) const {
+  return shell_window_->extension() == extension;
+}
+
 }  // namespace internal
 
 ShellWindow* ShellWindow::Create(Profile* profile,