[DevTools] Cleanup inspector overlay and make it work with virtual viewport.

Source/core/inspector/InspectorController.cpp

Index: Source/core/inspector/InspectorController.cpp
diff --git a/Source/core/inspector/InspectorController.cpp b/Source/core/inspector/InspectorController.cpp
index 93fb08161d9b11297b7ebe9a75bff565b149ca3f..4fdf4d0d4c36d462c3b0a5dede06a16e24ca8139 100644
--- a/Source/core/inspector/InspectorController.cpp
+++ b/Source/core/inspector/InspectorController.cpp
@@ -277,12 +277,6 @@ void InspectorController::setLayerTreeId(int id)
     m_tracingAgent->setLayerTreeId(id);
 }
 
-void InspectorController::webViewResized(const IntSize& size)
-{
-    if (InspectorPageAgent* pageAgent = m_instrumentingAgents->inspectorPageAgent())
-        pageAgent->webViewResized(size);
-}
-
 bool InspectorController::isUnderTest()
 {
     return m_isUnderTest;