mac: Fix a few memory leaks.

chrome/browser/ui/cocoa/browser/password_generation_bubble_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 "chrome/browser/ui/cocoa/browser/password_generation_bubble_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/autofill/password_generator.h"
 #include "chrome/browser/password_manager/password_manager.h"
@@ skipping 309 matching lines @@
     [self performLayout];
   }
 
   return self;
 }
 
 - (void)performLayout {
   NSView* contentView = [[self window] contentView];
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
 
-  textField_ =
-      [[PasswordGenerationTextField alloc]
-         initWithFrame:NSMakeRect(kBorderSize,
-                                  kBorderSize,
-                                  kTextFieldWidth,
-                                  kTextFieldHeight + kTextFieldTopPadding)
-        withController:self
-           normalImage:rb.GetNativeImageNamed(IDR_RELOAD_DIMMED).ToNSImage()
-            hoverImage:rb.GetNativeImageNamed(IDR_RELOAD).ToNSImage()];
+  textField_ = [[[PasswordGenerationTextField alloc]
+      initWithFrame:NSMakeRect(kBorderSize,
+                               kBorderSize,
+                               kTextFieldWidth,
+                               kTextFieldHeight + kTextFieldTopPadding)
+     withController:self
+        normalImage:rb.GetNativeImageNamed(IDR_RELOAD_DIMMED).ToNSImage()
+         hoverImage:rb.GetNativeImageNamed(IDR_RELOAD)
+             .ToNSImage()] autorelease];
   gfx::Font smallBoldFont =
       rb.GetFont(ResourceBundle::SmallFont).DeriveFont(0, gfx::Font::BOLD);
   [textField_ setFont:smallBoldFont.GetNativeFont()];
   [textField_
     setStringValue:base::SysUTF8ToNSString(passwordGenerator_->Generate())];
   [textField_ setDelegate:self];
   [contentView addSubview:textField_];
 
   CGFloat buttonX = (NSMaxX([textField_ frame]) +
                      kHorizontalSpacing -
                      kButtonHorizontalPadding);
   CGFloat buttonY = kBorderSize - kButtonVerticalPadding;
   NSButton* button =
       [[NSButton alloc] initWithFrame:NSMakeRect(
             buttonX,
             buttonY,
             kButtonWidth + 2 * kButtonHorizontalPadding,
             kButtonHeight + 2 * kButtonVerticalPadding)];
   [button setBezelStyle:NSRoundedBezelStyle];
   [button setTitle:l10n_util::GetNSString(IDS_PASSWORD_GENERATION_BUTTON_TEXT)];
   [button setTarget:self];
   [button setAction:@selector(fillPassword:)];
   [contentView addSubview:button];
 
-  NSTextField* title = [[NSTextField alloc]
+  scoped_nsobject<NSTextField> title([[NSTextField alloc]
                          initWithFrame:NSMakeRect(
                              kBorderSize,
                              kBorderSize + kTextFieldHeight + kVerticalSpacing,
                              kTitleWidth,
-                             kTitleHeight)];
+                             kTitleHeight)]);
   [title setEditable:NO];
   [title setBordered:NO];
   [title setStringValue:l10n_util::GetNSString(
         IDS_PASSWORD_GENERATION_BUBBLE_TITLE)];
   [contentView addSubview:title];
 }
 
 - (IBAction)fillPassword:(id)sender {
   if (renderViewHost_) {
     renderViewHost_->Send(
@@ skipping 17 matching lines @@
 - (void)controlTextDidChange:(NSNotification*)notification {
   actions_.password_edited = true;
 }
 
 - (void)windowWillClose:(NSNotification*)notification {
   password_generation::LogUserActions(actions_);
   [super windowWillClose:notification];
 }
 
 @end