Allow updating arc widget bounds in maximize/fullscreen state.

ash/wm/window_state_unittest.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 "ash/common/wm/window_state.h"
 
 #include <utility>
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/wm/window_state.h"
@@ skipping 357 matching lines @@
   // Updating display size will update the maximum window size.
   UpdateDisplay("900x700");
   EXPECT_EQ("0,0 900x700", maximized->GetBoundsInScreen().ToString());
   fullscreen.reset();
 
   // Exiting fullscreen will update the maximized window to the work area.
   EXPECT_EQ(gfx::Rect(0, 0, 900, 653 + height_offset).ToString(),
             maximized->GetBoundsInScreen().ToString());
 }
 
+TEST_P(WindowStateTest, AllowSetBoundsInMaximized) {
+  std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
+  WindowState* window_state = GetWindowState(window.get());
+  EXPECT_FALSE(window_state->IsMaximized());
+  gfx::Rect work_area =
+      display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
+  gfx::Rect original_bounds(50, 50, 200, 200);
+  window->SetBounds(original_bounds);
+  ASSERT_EQ(original_bounds, window->bounds());
+
+  window_state->set_allow_set_bounds_in_maximized(true);

[reveman, 2016/08/11 19:07:25]

can you test that restoring it to false after this also works?

+  window_state->Maximize();
+
+  EXPECT_TRUE(window_state->IsMaximized());
+  EXPECT_EQ(work_area, window->bounds());
+
+  gfx::Rect new_bounds(10, 10, 300, 300);
+  window->SetBounds(new_bounds);
+  EXPECT_EQ(new_bounds, window->bounds());
+
+  window_state->Restore();
+  EXPECT_FALSE(window_state->IsMaximized());
+  EXPECT_EQ(original_bounds, window->bounds());
+}
+
 // TODO(skuhne): Add more unit test to verify the correctness for the restore
 // operation.
 
 }  // namespace wm
 }  // namespace ash