Move creation of the various WebDatabaseTable types out of WebDatabase.

chrome/browser/webdata/autofill_table.h

Index: chrome/browser/webdata/autofill_table.h
diff --git a/chrome/browser/webdata/autofill_table.h b/chrome/browser/webdata/autofill_table.h
index c0a076c6248da9a32211b89a57eb55e153a71195..72e5850293d9d98358f3d7e772f4deca67458dd6 100644
--- a/chrome/browser/webdata/autofill_table.h
+++ b/chrome/browser/webdata/autofill_table.h
@@ -17,6 +17,7 @@ class AutofillEntry;
 class AutofillProfile;
 class AutofillTableTest;
 class CreditCard;
+class WebDatabase;
 
 struct FormFieldData;
 
@@ -114,9 +115,14 @@ class Time;
 //
 class AutofillTable : public WebDatabaseTable {
  public:
-  AutofillTable(sql::Connection* db, sql::MetaTable* meta_table);
+  AutofillTable();
   virtual ~AutofillTable();
-  virtual bool Init() OVERRIDE;
+
+  // Retrieves the AutofillTable* owned by |database|.
+  static AutofillTable* FromWebDatabase(WebDatabase* db);
+
+  virtual WebDatabaseTable::TypeKey GetTypeKey() const OVERRIDE;
+  virtual bool Init(sql::Connection* db, sql::MetaTable* meta_table) OVERRIDE;
   virtual bool IsSyncable() OVERRIDE;
   virtual bool MigrateToVersion(int version,
                                 const std::string& app_locale,