Limit display of the virtual keyboard to state changes triggered from a user gesture.

ui/views/controls/textfield/native_textfield_views.cc

Index: ui/views/controls/textfield/native_textfield_views.cc
diff --git a/ui/views/controls/textfield/native_textfield_views.cc b/ui/views/controls/textfield/native_textfield_views.cc
index 5e42d9dc9c87412f4e4ee0ef20a43acacfcaf0e9..cd46c5681f863b172c6d07a80ef06d556f1a326a 100644
--- a/ui/views/controls/textfield/native_textfield_views.cc
+++ b/ui/views/controls/textfield/native_textfield_views.cc
@@ -166,6 +166,7 @@ void NativeTextfieldViews::OnGestureEvent(ui::GestureEvent* event) {
     case ui::ET_GESTURE_TAP_DOWN:
       OnBeforeUserAction();
       textfield_->RequestFocus();
+      ShowImeIfNeeded();
       // We don't deselect if the point is in the selection
       // because TAP_DOWN may turn into a LONG_PRESS.
       if (!GetRenderText()->IsPointInSelection(event->location()) &&
@@ -610,6 +611,10 @@ void NativeTextfieldViews::UpdateVerticalMargins() {
   OnBoundsChanged(GetBounds());
 }
 
+void NativeTextfieldViews::ShowImeIfNeeded() const {
+  GetInputMethod()->ShowImeIfNeeded();
+}
+
 bool NativeTextfieldViews::IsIMEComposing() const {
   return model_->HasCompositionText();
 }
@@ -1444,8 +1449,10 @@ void NativeTextfieldViews::TrackMouseClicks(const ui::MouseEvent& event) {
 }
 
 void NativeTextfieldViews::HandleMousePressEvent(const ui::MouseEvent& event) {
-  if (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton())
+  if (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) {
     textfield_->RequestFocus();
+    ShowImeIfNeeded();
+  }
 
   if (!event.IsOnlyLeftMouseButton())
     return;