Remove chrome.windows.* support for platform apps.

chrome/browser/extensions/extension_tabs_module.cc

Index: chrome/browser/extensions/extension_tabs_module.cc
diff --git a/chrome/browser/extensions/extension_tabs_module.cc b/chrome/browser/extensions/extension_tabs_module.cc
index e60f1bc095af4e332a9b00c7eb6db08b9534d14a..3f55161e9d07f5099d2e0e49e13506d8ddf7c2cb 100644
--- a/chrome/browser/extensions/extension_tabs_module.cc
+++ b/chrome/browser/extensions/extension_tabs_module.cc
@@ -549,16 +549,6 @@ bool CreateWindowFunction::RunImpl() {
           window_type = Browser::TYPE_PANEL;
         else
           window_type = Browser::TYPE_POPUP;
-      } else if (type_str == keys::kWindowTypeValueShell &&
-          GetExtension()->is_platform_app()) {
-        GURL window_url = urls.empty() ? GURL(chrome::kAboutBlankURL) : urls[0];
-        ShellWindow* shell_window =
-            ShellWindow::Create(window_profile, GetExtension(), window_url);
-        shell_window->SetBounds(window_bounds);
-        shell_window->Show();
-        result_.reset(shell_window->extension_window_controller()->
-            CreateWindowValueWithTabs());
-        return true;
       } else if (type_str != keys::kWindowTypeValueNormal) {
         error_ = keys::kInvalidWindowTypeError;
         return false;