Make all of our unit tests be PlatformTests to get an autorelease pool....

chrome/browser/cocoa/status_bubble_mac_unittest.mm

 // 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.
 
 #include <Cocoa/Cocoa.h>
 
 #include "base/scoped_nsobject.h"
 #include "base/scoped_ptr.h"
 #import "chrome/browser/cocoa/cocoa_test_helper.h"
 #include "chrome/browser/cocoa/status_bubble_mac.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
 #import "third_party/GTM/AppKit/GTMTheme.h"
 
 @interface StatusBubbleMacTestWindowDelegate : NSObject <GTMThemeDelegate>;
 @end
 @implementation StatusBubbleMacTestWindowDelegate
 - (GTMTheme *)gtm_themeForWindow:(NSWindow *)window {
   NSLog(@"gettheme");
   return [[[GTMTheme alloc] init] autorelease];
 }
 @end
 
-class StatusBubbleMacTest : public testing::Test {
+class StatusBubbleMacTest : public PlatformTest {
  public:
   StatusBubbleMacTest() {
     NSWindow* window = cocoa_helper_.window();
     bubble_.reset(new StatusBubbleMac(window, nil));
     EXPECT_TRUE(bubble_.get());
     EXPECT_FALSE(bubble_->window_);  // lazily creates window
   }
 
   bool IsVisible() {
     return [bubble_->window_ isVisible] ? true: false;
@@ skipping 76 matching lines @@
   NSWindow* window = cocoa_helper_.window();
   // Create and delete immediately.
   StatusBubbleMac* bubble = new StatusBubbleMac(window, nil);
   delete bubble;
 
   // Create then delete while visible.
   bubble = new StatusBubbleMac(window, nil);
   bubble->SetStatus(L"showing");
   delete bubble;
 }