Reverts the revert of 22517.

Rewrites the Mac view resizing logic to have the BrowserWindowController
directly resize and relayout its children views.  Now when a view needs
to be resized, it asks its resize delegate (typically its controller's
parent) to perform the resize.

BUG=http://crbug.com/17619

TEST=Make sure that views are laid out correctly, even when they change size.
Open and close the bookmark bar.  Trigger an infobar and then close it.  Trigger
the download shelf and then close it.  Trigger a download shelf with the infobar
open, or with the bookmark bar open.  Switch to and from fullscreen with various
bars open.  Resize the browser window with various bars open.  Start the browser
with and without the bookmark bar open.  Try all of the above in a popup window.

Review URL: http://codereview.chromium.org/165014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@22721 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 21 insertions, 0 deletions

diff --git a/chrome/browser/cocoa/view_resizer.h b/chrome/browser/cocoa/view_resizer.h
new file mode 100644
index 0000000..199b60f
--- /dev/null
+++ b/chrome/browser/cocoa/view_resizer.h
@@ -0,0 +1,21 @@
+// Copyright (c) 2009 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 CHROME_BROWSER_COCOA_VIEW_RESIZER_H_
+#define CHROME_BROWSER_COCOA_VIEW_RESIZER_H_
+
+#include "chrome/browser/tabs/tab_strip_model.h"
+
+#import <Cocoa/Cocoa.h>
+
+// Defines a protocol that allows controllers to delegate resizing their views
+// to their parents.  When a controller needs to change a view's height, rather
+// than resizing it directly, it sends a message to its parent asking the parent
+// to perform the resize.  This allows the parent to do any re-layout that may
+// become necessary due to the resize.
+@protocol ViewResizer
+- (void)resizeView:(NSView*)view newHeight:(float)height;
+@end
+
+#endif  // CHROME_BROWSER_COCOA_VIEW_RESIZER_H_