Add a test that we resume commits after inserting the body.

Source/web/tests/mocks/MockLayerTreeView.h

Index: Source/web/tests/mocks/MockLayerTreeView.h
diff --git a/Source/web/tests/mocks/MockLayerTreeView.h b/Source/web/tests/mocks/MockLayerTreeView.h
new file mode 100644
index 0000000000000000000000000000000000000000..c3fdd5bc9c7798656c05abc9219265dc1073759f
--- /dev/null
+++ b/Source/web/tests/mocks/MockLayerTreeView.h
@@ -0,0 +1,31 @@
+// Copyright 2015 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.
+
+#ifndef MockLayerTreeView_h
+#define MockLayerTreeView_h
+
+#include "public/platform/WebLayerTreeView.h"
+#include "wtf/OwnPtr.h"
+
+namespace blink {
+
+class MockLayerTreeView : public WebLayerTreeView {

[dcheng, 2015/08/27 23:10:22]

Being pedantic, these seem more like "fakes" or "stubs" than "mocks": I think of
mocks as being more gmock-based classes, where you set expectations that certain
methods are called with certain arguments.

[esprehn, 2015/08/28 08:31:43]

We use this terminology in all our tests though, see for example stuff like
registerMockedURL, WebURLLoaderMockFactory, WebURLLoaderMock,
setMockScrollbarsEnabled and others.

Anyway I renamed to "Sim" for Simulation because I plan to flesh out a lot of
API here to simulate page loads and frame pumping to write new tests.

+public:
+    MockLayerTreeView();
+
+    void setNeedsAnimate() override { m_needsAnimate = true; }
+    bool needsAnimate() const { return m_needsAnimate; }
+
+    void setDeferCommits(bool deferCommits) override { m_deferCommits = deferCommits; }
+    bool deferCommits() const { return m_deferCommits; }
+
+private:
+    OwnPtr<WebLayerTreeView> m_layerTreeView;
+    bool m_needsAnimate;
+    bool m_deferCommits;
+};
+
+} // namespace blink
+
+#endif