[Mac] Move the associated find bar files into a subdir of c/b/ui/cocoa/...

chrome/browser/ui/cocoa/find_bar_text_field.mm

-// Copyright (c) 2010 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.
-
-#import "chrome/browser/ui/cocoa/find_bar_text_field.h"
-
-#include "base/logging.h"
-#import "chrome/browser/ui/cocoa/find_bar_text_field_cell.h"
-#import "chrome/browser/ui/cocoa/view_id_util.h"
-
-@implementation FindBarTextField
-
-+ (Class)cellClass {
-  return [FindBarTextFieldCell class];
-}
-
-- (void)awakeFromNib {
-  DCHECK([[self cell] isKindOfClass:[FindBarTextFieldCell class]]);
-
-  [self registerForDraggedTypes:
-          [NSArray arrayWithObjects:NSStringPboardType, nil]];
-}
-
-- (FindBarTextFieldCell*)findBarTextFieldCell {
-  DCHECK([[self cell] isKindOfClass:[FindBarTextFieldCell class]]);
-  return static_cast<FindBarTextFieldCell*>([self cell]);
-}
-
-- (ViewID)viewID {
-  return VIEW_ID_FIND_IN_PAGE_TEXT_FIELD;
-}
-
-- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)info {
-  // When a drag enters the text field, focus the field.  This will swap in the
-  // field editor, which will then handle the drag itself.
-  [[self window] makeFirstResponder:self];
-  return NSDragOperationNone;
-}
-
-@end