Make the textfield in app_list and find_bar not support suggestions.

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index b87953c8634d59c57533d8e3b97534a1ae11592a..b931b70a42d9397bb9c5c944ef5d6566ff669ca3 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -66,6 +66,10 @@ class VIEWS_EXPORT Textfield : public View,
   // Sets the input type; displays only asterisks for TEXT_INPUT_TYPE_PASSWORD.
   void SetTextInputType(ui::TextInputType type);
 
+  // Sets the input flags so that the system input methods can turn on/off some
+  // features. The flags is the bit map of ui::TextInputFlags.
+  void SetTextInputFlags(int flags);
+
   // Gets the text currently displayed in the Textfield.
   const base::string16& text() const { return model_->text(); }
 
@@ -431,6 +435,9 @@ class VIEWS_EXPORT Textfield : public View,
   // The input type of this text field.
   ui::TextInputType text_input_type_;
 
+  // The input flags of this text field.
+  int text_input_flags_;
+
   // The duration and timer to reveal the last typed password character.
   base::TimeDelta password_reveal_duration_;
   base::OneShotTimer<Textfield> password_reveal_timer_;