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

chrome/browser/cocoa/autocomplete_text_field_cell_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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_nsobject.h"
 #import "chrome/browser/cocoa/autocomplete_text_field_cell.h"
 #import "chrome/browser/cocoa/cocoa_test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
 
 namespace {
 
-class AutocompleteTextFieldCellTest : public testing::Test {
+class AutocompleteTextFieldCellTest : public PlatformTest {
  public:
   AutocompleteTextFieldCellTest() {
     // Make sure this is wide enough to play games with the cell
     // decorations.
     NSRect frame = NSMakeRect(0, 0, 300, 30);
     view_.reset([[NSTextField alloc] initWithFrame:frame]);
     scoped_nsobject<AutocompleteTextFieldCell> cell(
         [[AutocompleteTextFieldCell alloc] initTextCell:@"Testing"]);
     [view_ setCell:cell.get()];
     [cocoa_helper_.contentView() addSubview:view_.get()];
@@ skipping 217 matching lines @@
   // Text frame should take everything over again on reset.
   [cell clearKeywordAndHint];
   textFrame = [cell textFrameForFrame:bounds];
   EXPECT_FALSE(NSIsEmptyRect(textFrame));
   EXPECT_TRUE(NSContainsRect(bounds, textFrame));
   EXPECT_EQ(NSMinX(bounds), NSMinX(textFrame));
   EXPECT_EQ(NSMaxX(bounds), NSMaxX(textFrame));
 }
 
 }  // namespace