Add an interface to WebTestDelegate for auto resizing

Tools/DumpRenderTree/chromium/WebViewHost.cpp

Index: Tools/DumpRenderTree/chromium/WebViewHost.cpp
diff --git a/Tools/DumpRenderTree/chromium/WebViewHost.cpp b/Tools/DumpRenderTree/chromium/WebViewHost.cpp
index b7369bcdbf41fe305e70c8970c6998b032d2711e..73b82b09bfc06a3985600e957bc6d96875754672 100644
--- a/Tools/DumpRenderTree/chromium/WebViewHost.cpp
+++ b/Tools/DumpRenderTree/chromium/WebViewHost.cpp
@@ -844,6 +844,18 @@ void WebViewHost::setClientWindowRect(const WebKit::WebRect& rect)
     setWindowRect(rect);
 }
 
+void WebViewHost::enableAutoResizeMode(const WebSize& minSize, const WebSize& maxSize)
+{
+    webView()->enableAutoResizeMode(minSize, maxSize);
+}
+
+void WebViewHost::disableAutoResizeMode(const WebKit::WebSize& newSize)
+{
+    setWindowRect(WebRect(0, 0, newSize.width, newSize.height));
+    webView()->disableAutoResizeMode();
+    webView()->resize(newSize);
+}
+
 bool WebViewHost::navigate(const TestNavigationEntry& entry, bool reload)
 {
     // Get the right target frame for the entry.