Adds DevTools commands for forced viewport override.

third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp

 // Copyright 2013 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 "platform/testing/WebLayerTreeViewImplForTesting.h"
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/animation/animation_host.h"
 #include "cc/animation/animation_timeline.h"
 #include "cc/blink/web_layer_impl.h"
@@ skipping 69 matching lines @@
     gfx::Size gfxSize(std::max(0, deviceViewportSize.width), std::max(0, deviceViewportSize.height));
     m_layerTreeHost->GetLayerTree()->SetViewportSize(gfxSize);
 }
 
 void WebLayerTreeViewImplForTesting::setViewportSize(const WebSize& deviceViewportSize)
 {
     gfx::Size gfxSize(std::max(0, deviceViewportSize.width), std::max(0, deviceViewportSize.height));
     m_layerTreeHost->GetLayerTree()->SetViewportSize(gfxSize);
 }
 
+WebSize WebLayerTreeViewImplForTesting::getViewportSize() const
+{
+    return WebSize(
+        m_layerTreeHost->GetLayerTree()->device_viewport_size().width(),
+        m_layerTreeHost->GetLayerTree()->device_viewport_size().height());
+}
+
 void WebLayerTreeViewImplForTesting::setDeviceScaleFactor(float deviceScaleFactor)
 {
     m_layerTreeHost->GetLayerTree()->SetDeviceScaleFactor(deviceScaleFactor);
 }
 
 void WebLayerTreeViewImplForTesting::setBackgroundColor(WebColor color)
 {
     m_layerTreeHost->GetLayerTree()->set_background_color(color);
 }
 
@@ skipping 116 matching lines @@
 {
     m_layerTreeHost->GetLayerTree()->SetHaveScrollEventHandlers(haveEentHandlers);
 }
 
 bool WebLayerTreeViewImplForTesting::haveScrollEventHandlers() const
 {
     return m_layerTreeHost->GetLayerTree()->have_scroll_event_handlers();
 }
 
 } // namespace blink