Remove SetAllowOverlappingView from RWHVMac

chrome/browser/ui/cocoa/find_bar/find_bar_cocoa_controller.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/auto_reset.h"
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 433 matching lines @@
     [showHideAnimation_.release() autorelease];
   } else if (animation == moveAnimation_.get()) {
     [moveAnimation_.release() autorelease];
   } else {
     NOTREACHED();
   }
 
   // If the find bar is not visible, make it actually hidden, so it'll no longer
   // respond to key events.
   [[self view] setHidden:![self isFindBarVisible]];
-  [[self browserWindowController] onFindBarVisibilityChanged];
 }
 
 - (gfx::Point)findBarWindowPosition {
   gfx::Rect viewRect(NSRectToCGRect([[self view] frame]));
   // Convert Cocoa coordinates (Y growing up) to Y growing down.
   // Offset from |maxY_|, which represents the content view's top, instead
   // of from the superview, which represents the whole browser window.
   viewRect.set_y(maxY_ - viewRect.bottom());
   return viewRect.origin();
 }
@@ skipping 35 matching lines @@
                duration:(float)duration {
   // Save the current frame.
   NSRect startFrame = [findBarView_ frame];
 
   // Stop any existing animations.
   [showHideAnimation_ stopAnimation];
 
   if (!animate) {
     [findBarView_ setFrame:endFrame];
     [[self view] setHidden:![self isFindBarVisible]];
-    [[self browserWindowController] onFindBarVisibilityChanged];
     showHideAnimation_.reset(nil);
     return;
   }
 
   // If animating, ensure that the find bar is not hidden. Hidden status will be
   // updated at the end of the animation.
   [[self view] setHidden:NO];
-  //[[self browserWindowController] onFindBarVisibilityChanged];
 
   // Reset the frame to what was saved above.
   [findBarView_ setFrame:startFrame];
 
-  [[self browserWindowController] onFindBarVisibilityChanged];
-
   showHideAnimation_.reset([self createAnimationForView:findBarView_
                                                 toFrame:endFrame
                                                duration:duration]);
 }
 
 - (float)findBarHorizontalPosition {
   // Get the rect of the FindBar.
   NSView* view = [self view];
   NSRect frame = [view frame];
   gfx::Rect viewRect(NSRectToCGRect(frame));
@@ skipping 86 matching lines @@
 }
 
 - (BrowserWindowController*)browserWindowController {
   if (!browser_)
     return nil;
   return [BrowserWindowController
       browserWindowControllerForWindow:browser_->window()->GetNativeWindow()];
 }
 
 @end