[Mac Extensions Toolbar] Make the container's animationEndFrame always valid

chrome/browser/ui/cocoa/extensions/browser_actions_container_view.mm

 // Copyright (c) 2011 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/extensions/browser_actions_container_view.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #import "chrome/browser/ui/cocoa/view_id_util.h"
@@ skipping 18 matching lines @@
 }  // namespace
 
 @interface BrowserActionsContainerView(Private)
 // Returns the cursor that should be shown when hovering over the grippy based
 // on |canDragLeft_| and |canDragRight_|.
 - (NSCursor*)appropriateCursorForGrippy;
 @end
 
 @implementation BrowserActionsContainerView
 
-@synthesize animationEndFrame = animationEndFrame_;
 @synthesize canDragLeft = canDragLeft_;
 @synthesize canDragRight = canDragRight_;
 @synthesize grippyPinned = grippyPinned_;
 @synthesize maxWidth = maxWidth_;
 @synthesize userIsResizing = userIsResizing_;
 
 #pragma mark -
 #pragma mark Overridden Class Functions
 
 - (id)initWithFrame:(NSRect)frameRect {
@@ skipping 117 matching lines @@
   NSRect frame = [self frame];
   lastXPos_ = frame.origin.x;
   CGFloat dX = frame.size.width - width;
   frame.size.width = width;
   NSRect newFrame = NSOffsetRect(frame, dX, 0);
   if (animate) {
     [NSAnimationContext beginGrouping];
     [[NSAnimationContext currentContext] setDuration:kAnimationDuration];
     [[self animator] setFrame:newFrame];
     [NSAnimationContext endGrouping];
-    animationEndFrame_ = newFrame;
 
     [[NSNotificationCenter defaultCenter]
         postNotificationName:kBrowserActionsContainerWillAnimate
                       object:self];
   } else {
     [self setFrame:newFrame];
     [self setNeedsDisplay:YES];
   }
 }
 
 - (CGFloat)resizeDeltaX {
   return [self frame].origin.x - lastXPos_;
 }
 
+- (NSRect)animationEndFrame {
+  return [[self animator] frame];
+}
+
 #pragma mark -
 #pragma mark Private Methods
 
 // Returns the cursor to display over the grippy hover region depending on the
 // current drag state.
 - (NSCursor*)appropriateCursorForGrippy {
   NSCursor* retVal;
   if (!resizable_ || (!canDragLeft_ && !canDragRight_)) {
     retVal = [NSCursor arrowCursor];
   } else if (!canDragLeft_) {
     retVal = [NSCursor resizeRightCursor];
   } else if (!canDragRight_) {
     retVal = [NSCursor resizeLeftCursor];
   } else {
     retVal = [NSCursor resizeLeftRightCursor];
   }
   return retVal;
 }
 
 @end