Roll forward 8722,8721

Review URL: http://codereview.chromium.org/19028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8734 0039d316-1c4b-4281-b951-d872f2087c98

• base/base.xcodeproj/project.pbxproj[diff]
• base/file_util.cc[diff]
• base/file_util.h[diff]
• chrome/browser/browser.scons[diff]
• chrome/browser/renderer_host/browser_render_process_host.cc[diff]
• chrome/browser/spellchecker.cc[diff]
• chrome/browser/spellchecker.h[diff]
• chrome/browser/visitedlink_master.cc[diff]
• chrome/browser/visitedlink_master.h[diff]
• chrome/browser/visitedlink_perftest.cc[diff]
• chrome/browser/visitedlink_unittest.cc[diff]
• chrome/chrome.xcodeproj/project.pbxproj[diff]
• chrome/common/temp_scaffolding_stubs.h[diff]