Don't use drag to corner resizing for unresizable windows

ash/wm/workspace/workspace_window_resizer_unittest.cc

 // Copyright (c) 2012 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 "ash/wm/workspace/workspace_window_resizer.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/display/mouse_cursor_event_filter.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/cursor_manager_test_api.h"
 #include "ash/wm/cursor_manager.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/shelf_layout_manager.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/workspace_controller.h"
 #include "ash/wm/workspace/snap_sizer.h"
 #include "ash/wm/workspace/phantom_window_controller.h"
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
+#include "ui/aura/client/aura_constants.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/base/hit_test.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/screen.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace internal {
 namespace {
@@ skipping 476 matching lines @@
     // With the resolution of 200x600 we will hit in this case the 50% screen
     // size setting.
     EXPECT_EQ("100,0 100x" + base::IntToString(bottom),
               window_->bounds().ToString());
     EXPECT_EQ("800,10 50x60",
               GetRestoreBoundsInScreen(window_.get())->ToString());
   }
 #endif
 }
 
+// Check that non resizable windows will not get resized.
+TEST_F(WorkspaceWindowResizerTest, NonResizableWindows) {
+  window_->SetBounds(gfx::Rect(20, 30, 50, 60));
+  window_->SetProperty(aura::client::kCanResizeKey, false);
+
+  scoped_ptr<WorkspaceWindowResizer> resizer(WorkspaceWindowResizer::Create(
+      window_.get(), gfx::Point(), HTCAPTION, empty_windows()));
+  ASSERT_TRUE(resizer.get());
+  resizer->Drag(CalculateDragPoint(*resizer, -20, 0), 0);
+  resizer->CompleteDrag(0);
+  EXPECT_EQ("0,30 50x60", window_->bounds().ToString());
+}
+
 // Verifies a window can be moved from the primary display to another.
 TEST_F(WorkspaceWindowResizerTest, MAYBE_WindowDragWithMultiDisplays) {
   // The secondary display is logically on the right, but on the system (e.g. X)
   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
   UpdateDisplay("800x600,800x600");
   shelf_layout_manager()->LayoutShelf();
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   ASSERT_EQ(2U, root_windows.size());
 
   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
@@ skipping 916 matching lines @@
     // Move it 100 to the bottom.
     resizer->Drag(CalculateDragPoint(*resizer, 0, 100), 0);
     EXPECT_EQ("0,150 400x200", window_->bounds().ToString());
     resizer->CompleteDrag(0);
     EXPECT_TRUE(ash::wm::HasUserChangedWindowPositionOrSize(window_.get()));
   }
 }
 
 }  // namespace internal
 }  // namespace ash