Linux: App windows with frame: none now have resize handles.

chrome/browser/ui/views/apps/chrome_native_app_window_views.cc

 // Copyright 2014 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/views/apps/chrome_native_app_window_views.h"
 
 #include "apps/ui/views/app_window_frame_view.h"
 #include "base/command_line.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/app_mode/app_mode_utils.h"
@@ skipping 314 matching lines @@
                                           native_window->GetBoundsInScreen());
     widget()->SetBounds(window_bounds);
   }
 #else
   // TODO(stevenjb): NativeAppWindow panels need to be implemented for other
   // platforms.
 #endif
 }
 
 void ChromeNativeAppWindowViews::InstallEasyResizeTargeterOnContainer() const {
-  aura::Window* root_window = widget()->GetNativeWindow()->GetRootWindow();
+  aura::Window* window = widget()->GetNativeWindow();
   gfx::Insets inset(kResizeInsideBoundsSize, kResizeInsideBoundsSize,
                     kResizeInsideBoundsSize, kResizeInsideBoundsSize);
-  root_window->SetEventTargeter(scoped_ptr<ui::EventTargeter>(
-      new wm::EasyResizeWindowTargeter(root_window, inset, inset)));
+  // Add the EasyResizeWindowTargeter on the window, not its root window. The
+  // root window does not have a delegate, which is needed to handle the event
+  // in Linux.
+  window->SetEventTargeter(scoped_ptr<ui::EventTargeter>(
+      new wm::EasyResizeWindowTargeter(window, inset, inset)));
 }
 
 apps::AppWindowFrameView*
 ChromeNativeAppWindowViews::CreateAppWindowFrameView() {
   // By default the user can resize the window from slightly inside the bounds.
   int resize_inside_bounds_size = kResizeInsideBoundsSize;
   int resize_outside_bounds_size = 0;
   int resize_outside_scale_for_touch = 1;
   int resize_area_corner_size = kResizeAreaCornerSize;
 #if defined(USE_ASH)
@@ skipping 314 matching lines @@
     InitializePanelWindow(create_params);
   } else {
     InitializeDefaultWindow(create_params);
   }
   extension_keybinding_registry_.reset(new ExtensionKeybindingRegistryViews(
       Profile::FromBrowserContext(app_window->browser_context()),
       widget()->GetFocusManager(),
       extensions::ExtensionKeybindingRegistry::PLATFORM_APPS_ONLY,
       NULL));
 
-#if defined(OS_WIN)
+#if !defined(OS_CHROMEOS)
   if ((IsFrameless() || has_frame_color_) &&
       chrome::GetHostDesktopTypeForNativeWindow(widget()->GetNativeWindow()) !=
           chrome::HOST_DESKTOP_TYPE_ASH) {
     InstallEasyResizeTargeterOnContainer();
   }
 #endif
 }