Make WebView work for external displays (over Presentations).

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index a47ded208cd9e9a7af3ce69d55f71e219cff2054..588f2e7d3de81502f3d6d79c1615e4be6bd7df0a 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -1309,6 +1309,12 @@ void ContentViewCoreImpl::SetAccessibilityEnabledInternal(bool enabled) {
 }
 
 void ContentViewCoreImpl::SendOrientationChangeEventInternal() {
+  // TODO need to make ScreenOrientationListener context-based to make sure we
+  // reach this function every time the current display changes orientation
+  ui::WindowAndroid* windowAndroid = GetWindowAndroid();
+  if (windowAndroid)
+    windowAndroid->UpdateDeviceDisplayInfo();
+
   RenderWidgetHostViewAndroid* rwhv = GetRenderWidgetHostViewAndroid();
   if (rwhv)
     rwhv->UpdateScreenInfo(GetViewAndroid());