aura: Allow specifying the size of TestScreen when creating it.

ui/views_content_client/views_content_client_main_parts_chromeos.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 "content/public/browser/context_factory.h"
 #include "content/shell/browser/shell_browser_context.h"
 #include "ui/aura/test/test_screen.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/screen.h"
 #include "ui/views_content_client/views_content_client.h"
@@ skipping 44 matching lines @@
 
 ViewsContentClientMainPartsChromeOS::ViewsContentClientMainPartsChromeOS(
     const content::MainFunctionParams& content_params,
     ViewsContentClient* views_content_client)
     : ViewsContentClientMainPartsAura(content_params, views_content_client) {
 }
 
 void ViewsContentClientMainPartsChromeOS::PreMainMessageLoopRun() {
   ViewsContentClientMainPartsAura::PreMainMessageLoopRun();
 
-  gfx::Screen::SetScreenInstance(
-      gfx::SCREEN_TYPE_NATIVE, aura::TestScreen::Create());
+  gfx::Size host_size(800, 600);
+  gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE,
+                                 aura::TestScreen::Create(host_size));

[sky, 2014/06/19 14:51:08]

Same question here about leaking.

   // Set up basic pieces of views::corewm.
-  wm_test_helper_.reset(new ::wm::WMTestHelper(gfx::Size(800, 600),
-                                               content::GetContextFactory()));
+  wm_test_helper_.reset(
+      new ::wm::WMTestHelper(host_size, content::GetContextFactory()));
   // Ensure the X window gets mapped.
   wm_test_helper_->host()->Show();
 
   // Ensure Aura knows where to open new windows.
   aura::Window* root_window = wm_test_helper_->host()->window();
   views_content_client()->task().Run(browser_context(), root_window);
 
   nested_accelerator_controller_.reset(
       new ::wm::NestedAcceleratorController(new NestedAcceleratorDelegate));
   aura::client::SetDispatcherClient(root_window,
@@ skipping 12 matching lines @@
 
 // static
 ViewsContentClientMainParts* ViewsContentClientMainParts::Create(
     const content::MainFunctionParams& content_params,
     ViewsContentClient* views_content_client) {
   return new ViewsContentClientMainPartsChromeOS(
       content_params, views_content_client);
 }
 
 }  // namespace ui