Add preferences for the clear browsing data dialog so that...

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
===================================================================
--- chrome/common/pref_names.cc	(revision 2218)
+++ chrome/common/pref_names.cc	(working copy)
@@ -193,7 +193,16 @@
 const wchar_t kRecentlySelectedEncoding[] =
     L"profile.recently_selected_encodings";
 
+// Boolean prefs that define the default values for the check boxes in the Clear
+// Browsing Data dialog.
+const wchar_t kDeleteBrowsingHistory[] = L"browser.clear_data.browsing_history";
+const wchar_t kDeleteDownloadHistory[] =
+    L"browser.clear_data.download_history";
+const wchar_t kDeleteCache[] = L"browser.clear_data.cache";
+const wchar_t kDeleteCookies[] = L"browser.clear_data.cookies";
+const wchar_t kDeletePasswords[] = L"browser.clear_data.passwords";
 
+
 // *************** LOCAL STATE ***************
 // These are attached to the machine/installation