[Android] Restart input only once on focus change

content/renderer/input/render_widget_input_handler_delegate.h

Index: content/renderer/input/render_widget_input_handler_delegate.h
diff --git a/content/renderer/input/render_widget_input_handler_delegate.h b/content/renderer/input/render_widget_input_handler_delegate.h
index ad3518874f349b2a8d9291092ac489ec2b0e7351..f23ff3a1770cfd57a6aa39d5504f6bcd207a660f 100644
--- a/content/renderer/input/render_widget_input_handler_delegate.h
+++ b/content/renderer/input/render_widget_input_handler_delegate.h
@@ -72,6 +72,9 @@ class CONTENT_EXPORT RenderWidgetInputHandlerDelegate {
   // Send an update of text input state to the browser process.
   virtual void UpdateTextInputState() = 0;
 
+  // Clear the text input state.
+  virtual void ClearTextInputState() = 0;
+
   // Notifies that a gesture event is about to be handled.
   // Returns true if no further handling is needed. In that case, the event
   // won't be sent to WebKit.