Make the textfield in app_list and find_bar not support suggestions.

ui/views/controls/textfield/textfield.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 48 matching lines @@
     controller_ = controller;
   }
 
   // Gets/Sets whether or not the Textfield is read-only.
   bool read_only() const { return read_only_; }
   void SetReadOnly(bool read_only);
 
   // 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(); }
 
   // Sets the text currently displayed in the Textfield.  This doesn't
   // change the cursor position if the current cursor is within the
   // new text's range, or moves the cursor to the end if the cursor is
   // out of the new text's range.
   void SetText(const base::string16& new_text);
 
   // Appends the given string to the previously-existing text in the field.
@@ skipping 345 matching lines @@
 
   // Placeholder text color.
   SkColor placeholder_text_color_;
 
   // The accessible name of the text field.
   base::string16 accessible_name_;
 
   // 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_;
 
   // Tracks whether a user action is being performed; i.e. OnBeforeUserAction()
   // has been called, but OnAfterUserAction() has not yet been called.
   bool performing_user_action_;
 
   // True if InputMethod::CancelComposition() should not be called.
   bool skip_input_method_cancel_composition_;
@@ skipping 36 matching lines @@
 
   // Used to bind callback functions to this object.
   base::WeakPtrFactory<Textfield> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Textfield);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_