Add Android AX functions to set the value and selection of a text field.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 1f228805e7651e4c4876b0ca92393e503dc9ec18..8a42bc889e841ebbd4924cc9eb12710000b40158 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -457,6 +457,11 @@ void RenderFrameHostImpl::AccessibilitySetTextSelection(
       routing_id_, object_id, start_offset, end_offset));
 }
 
+void RenderFrameHostImpl::AccessibilitySetValue(
+    int object_id, const base::string16& value) {
+  Send(new AccessibilityMsg_SetValue(routing_id_, object_id, value));
+}
+
 bool RenderFrameHostImpl::AccessibilityViewHasFocus() const {
   RenderWidgetHostView* view = render_view_host_->GetView();
   if (view)