Makes windowmanager draw non-client area

components/mus/ws/window_manager_client_apptest.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 "base/bind.h"
 #include "base/logging.h"
 #include "base/run_loop.h"
 #include "components/mus/public/cpp/tests/window_server_test_base.h"
 #include "components/mus/public/cpp/util.h"
 #include "components/mus/public/cpp/window_observer.h"
@@ skipping 43 matching lines @@
 class ClientAreaChangeObserver : public WindowObserver {
  public:
   explicit ClientAreaChangeObserver(Window* window) : window_(window) {
     window_->AddObserver(this);
   }
   ~ClientAreaChangeObserver() override { window_->RemoveObserver(this); }
 
  private:
   // Overridden from WindowObserver:
   void OnWindowClientAreaChanged(Window* window,
-                                 const gfx::Rect& old_client_area) override {
+                                 const gfx::Insets& old_client_area) override {
     DCHECK_EQ(window, window_);
     EXPECT_TRUE(WindowServerTestBase::QuitRunLoop());
   }
 
   Window* window_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(ClientAreaChangeObserver);
 };
 
 // Wait until the bounds of the supplied window change; returns false on
@@ skipping 792 matching lines @@
   EXPECT_EQ(result4.connection_id, result4.connection->GetConnectionId());
 }
 
 TEST_F(WindowServerTest, ClientAreaChanged) {
   Window* embed_window = window_manager()->NewWindow();
   window_manager()->GetRoot()->AddChild(embed_window);
 
   WindowTreeConnection* embedded_connection = Embed(embed_window).connection;
 
   // Verify change from embedded makes it to parent.
-  embedded_connection->GetRoot()->SetClientArea(gfx::Rect(1, 2, 3, 4));
+  embedded_connection->GetRoot()->SetClientArea(gfx::Insets(1, 2, 3, 4));
   ASSERT_TRUE(WaitForClientAreaToChange(embed_window));
-  EXPECT_TRUE(gfx::Rect(1, 2, 3, 4) == embed_window->client_area());
+  EXPECT_TRUE(gfx::Insets(1, 2, 3, 4) == embed_window->client_area());
 
-  // Verify bounds change results in resetting client area in embedded.
+  // Changing bounds shouldn't effect client area.
   embed_window->SetBounds(gfx::Rect(21, 22, 23, 24));
   WaitForBoundsToChange(embedded_connection->GetRoot());
   EXPECT_TRUE(gfx::Rect(21, 22, 23, 24) ==
               embedded_connection->GetRoot()->bounds());
-  EXPECT_TRUE(gfx::Rect(0, 0, 23, 24) ==
+  EXPECT_TRUE(gfx::Insets(1, 2, 3, 4) ==
               embedded_connection->GetRoot()->client_area());
 }
 
 }  // namespace ws
 
 }  // namespace mus