Use a mocked compositor for unit tests

content/browser/renderer_host/render_widget_host_unittest.cc

 // Copyright (c) 2011 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/basictypes.h"
+#include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/shared_memory.h"
 #include "base/timer.h"
+#include "chrome/test/base/test_launcher_utils.h"

[sky, 2011/10/13 19:52:00]

content shouldn't depend on chrome or views.

[danakj, 2011/10/14 15:15:13]

Oh this isn't even needed now, removed.

 #include "content/browser/browser_thread.h"
 #include "content/browser/content_browser_client.h"
 #include "content/browser/renderer_host/backing_store.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/common/notification_details.h"
 #include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
 #include "content/common/notification_source.h"
 #include "content/common/view_messages.h"
 #include "content/test/test_browser_context.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/canvas_skia.h"
 
+#if defined(VIEWS_COMPOSITOR)
+#include "ui/gfx/compositor/test_compositor.h"
+#include "views/widget/widget.h"
+#endif
+
 using base::TimeDelta;
 
 using WebKit::WebInputEvent;
 using WebKit::WebMouseWheelEvent;
 
 namespace gfx {
 class Size;
 }
 
 // RenderWidgetHostProcess -----------------------------------------------------
@@ skipping 197 matching lines @@
   MockRenderWidgetHost* host() const { return host_; }
   int tag() const { return tag_; }
   gfx::Size size() const { return size_; }
 
  private:
   MockRenderWidgetHost* host_;
   int tag_;
   gfx::Size size_;
 };
 
+#if defined(VIEWS_COMPOSITOR)
+// static
+static ui::Compositor* TestCreateCompositor(ui::CompositorDelegate* owner) {
+  return new ui::TestCompositor(owner);
+}
+#endif
 
 // RenderWidgetHostTest --------------------------------------------------------
 
 class RenderWidgetHostTest : public testing::Test {
  public:
   RenderWidgetHostTest() : process_(NULL) {
   }
   ~RenderWidgetHostTest() {
   }
 
  protected:
   // testing::Test
   void SetUp() {
+#if defined(VIEWS_COMPOSITOR)
+    // Use a mock compositor that noops draws.
+    views::Widget::set_compositor_factory_for_testing(&TestCreateCompositor);

[danakj, 2011/10/14 15:15:13]

Moved the factory to ui::Compositor.

+#endif
     browser_context_.reset(new TestBrowserContext());
     process_ = new RenderWidgetHostProcess(browser_context_.get());
     host_.reset(new MockRenderWidgetHost(process_, 1));
     view_.reset(new TestView(host_.get()));
     host_->SetView(view_.get());
     host_->Init();
   }
   void TearDown() {
     view_.reset();
     host_.reset();
     process_ = NULL;
     browser_context_.reset();
+#if defined(VIEWS_COMPOSITOR)
+    views::Widget::set_compositor_factory_for_testing(NULL);
+#endif
 
     // Process all pending tasks to avoid leaks.
     MessageLoop::current()->RunAllPending();
   }
 
   void SendInputEventACK(WebInputEvent::Type type, bool processed) {
     scoped_ptr<IPC::Message> response(
         new ViewHostMsg_HandleInputEvent_ACK(0, type, processed));
     host_->OnMessageReceived(*response);
   }
@@ skipping 446 matching lines @@
   // Start it again to ensure it still works.
   EXPECT_FALSE(host_->unresponsive_timer_fired());
   host_->StartHangMonitorTimeout(TimeDelta::FromMilliseconds(10));
 
   // Wait long enough for first timeout and see if it fired.
   MessageLoop::current()->PostDelayedTask(FROM_HERE,
                                           new MessageLoop::QuitTask(), 10);
   MessageLoop::current()->Run();
   EXPECT_TRUE(host_->unresponsive_timer_fired());
 }