Revert of Add keyboard accessibility to ConstrainedWindowButton

chrome/browser/ui/cocoa/website_settings/chooser_bubble_ui_cocoa.mm

 // Copyright 2015 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/website_settings/chooser_bubble_ui_cocoa.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 312 matching lines @@
     bubbleFrame.origin = currentWindowFrame.origin;
     bubbleFrame.origin.y = bubbleFrame.origin.y +
                            currentWindowFrame.size.height -
                            bubbleFrame.size.height;
     [[self window] setFrame:bubbleFrame display:YES];
   } else {
     [[self window] setFrame:bubbleFrame display:NO];
     [self setAnchorPoint:[self getExpectedAnchorPoint]];
     [self showWindow:nil];
     [[self window] makeFirstResponder:nil];
-    [[self window] setInitialFirstResponder:tableView_.get()];
+    [[self window] setInitialFirstResponder:connectButton_.get()];
   }
 }
 
 - (NSInteger)numberOfRowsInTableView:(NSTableView*)tableView {
   // When there are no devices, the table contains a message saying there are
   // no devices, so the number of rows is always at least 1.
   return std::max(
       static_cast<NSInteger>(chooserBubbleController_->NumOptions()),
       static_cast<NSInteger>(1));
 }
@@ skipping 232 matching lines @@
   [chooser_bubble_ui_controller_ onOptionAdded:static_cast<NSInteger>(index)];
 }
 
 void ChooserBubbleUiCocoa::OnOptionRemoved(size_t index) {
   [chooser_bubble_ui_controller_ onOptionRemoved:static_cast<NSInteger>(index)];
 }
 
 void ChooserBubbleUiCocoa::OnBubbleClosing() {
   chooser_bubble_ui_controller_ = nil;
 }