[Views, WebIntents] Enable auto-resizing for WebContents

ui/views/controls/webview/webview.cc

Index: ui/views/controls/webview/webview.cc
diff --git a/ui/views/controls/webview/webview.cc b/ui/views/controls/webview/webview.cc
index b6825d15159fd13b09e8efd6a2787289baede75a..475480396adffd268a64f70651890e5a3e57f29d 100644
--- a/ui/views/controls/webview/webview.cc
+++ b/ui/views/controls/webview/webview.cc
@@ -79,6 +79,10 @@ void WebView::OnWebContentsFocused(content::WebContents* web_contents) {
     focus_manager->SetFocusedView(this);
 }
 
+void WebView::SetPreferredSize(const gfx::Size& preferred_size) {
+  preferred_size_ = preferred_size;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebView, View overrides:
 
@@ -137,6 +141,13 @@ gfx::NativeViewAccessible WebView::GetNativeViewAccessible() {
   return View::GetNativeViewAccessible();
 }
 
+gfx::Size WebView::GetPreferredSize() {
+  if (preferred_size_ == gfx::Size())
+    return View::GetPreferredSize();
+  else
+    return preferred_size_;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // WebView, content::NotificationObserver implementation: