C++ readability change for cindylau.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/2090008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@48733 0039d316-1c4b-4281-b951-d872f2087c98
Profile* ChooseProfileFromStoreId(const std::string& store_id,
                                  Profile* profile,
                                  bool include_incognito) {
  DCHECK(profile);
  if (store_id == kOriginalProfileStoreId)
    return profile->GetOriginalProfile();
  if (store_id == kOffTheRecordProfileStoreId && include_incognito)
    return profile->GetOffTheRecordProfile();
   return NULL;
 }

Profile* ChooseProfileFromStoreId(const std::string& store_id,
                                  Profile* profile,
                                  bool include_incognito) {
  DCHECK(profile);
  if (store_id == kOriginalProfileStoreId)
    return profile->GetOriginalProfile();
  if (store_id == kOffTheRecordProfileStoreId && include_incognito)
    return profile->GetOffTheRecordProfile();
   return NULL;
 }
