Adding keyboard service.

sky/viewer/document_view.cc

Index: sky/viewer/document_view.cc
diff --git a/sky/viewer/document_view.cc b/sky/viewer/document_view.cc
index e7cc0115904f0841c87d5a322788f4d884ad390f..ba69a4e980b31e091c962a9a324e2d3db79d6c17 100644
--- a/sky/viewer/document_view.cc
+++ b/sky/viewer/document_view.cc
@@ -124,6 +124,8 @@ void DocumentView::OnEmbed(
   // TODO(abarth): We should ask the view whether it is focused instead of
   // assuming that we're focused.
   web_view_->setFocus(true);
+  // Needed on android, as the window does not get the focus otherwise.
+  root_->SetFocus();

[qsr, 2015/01/21 15:33:05]

This seems very wrong. But given that you explicitly set the focus to true, I do
not think this is worst that what we have.

   root_->AddObserver(this);
 }