Add UseCounter for FTS3 virtual tables in WebSQL.

third_party/WebKit/Source/modules/webdatabase/DatabaseAuthorizer.cpp

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 10 matching lines @@
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "modules/webdatabase/DatabaseAuthorizer.h"
 
+#include "core/frame/UseCounter.h"
+#include "modules/webdatabase/DatabaseContext.h"
 #include "platform/wtf/HashSet.h"
 #include "platform/wtf/StdLibExtras.h"
 #include "platform/wtf/Threading.h"
 #include "platform/wtf/text/StringHash.h"
 
 namespace blink {
 
 DatabaseAuthorizer* DatabaseAuthorizer::Create(
+    DatabaseContext* database_context,
     const String& database_info_table_name) {
-  return new DatabaseAuthorizer(database_info_table_name);
+  return new DatabaseAuthorizer(database_context, database_info_table_name);
 }
 
-DatabaseAuthorizer::DatabaseAuthorizer(const String& database_info_table_name)
+DatabaseAuthorizer::DatabaseAuthorizer(DatabaseContext* database_context,
+                                       const String& database_info_table_name)
     : security_enabled_(false),
-      database_info_table_name_(database_info_table_name) {
+      database_info_table_name_(database_info_table_name),
+      database_context_(database_context) {
   DCHECK(IsMainThread());
 
   Reset();
 }
 
 void DatabaseAuthorizer::Reset() {
   last_action_was_insert_ = false;
   last_action_changed_database_ = false;
   permissions_ = kReadWriteMask;
 }
@@ skipping 184 matching lines @@
 
 int DatabaseAuthorizer::CreateVTable(const String& table_name,
                                      const String& module_name) {
   if (!AllowWrite())
     return kSQLAuthDeny;
 
   // Allow only the FTS3 extension
   if (!DeprecatedEqualIgnoringCase(module_name, "fts3"))
     return kSQLAuthDeny;
 
+  UseCounter::Count(database_context_->GetExecutionContext(),
+                    UseCounter::kWebDatabaseCreateDropFTS3Table);
   last_action_changed_database_ = true;
   return DenyBasedOnTableName(table_name);
 }
 
 int DatabaseAuthorizer::DropVTable(const String& table_name,
                                    const String& module_name) {
   if (!AllowWrite())
     return kSQLAuthDeny;
 
   // Allow only the FTS3 extension
   if (!DeprecatedEqualIgnoringCase(module_name, "fts3"))
     return kSQLAuthDeny;
 
+  UseCounter::Count(database_context_->GetExecutionContext(),
+                    UseCounter::kWebDatabaseCreateDropFTS3Table);
   return UpdateDeletesBasedOnTableName(table_name);
 }
 
 int DatabaseAuthorizer::AllowDelete(const String& table_name) {
   if (!AllowWrite())
     return kSQLAuthDeny;
 
   return UpdateDeletesBasedOnTableName(table_name);
 }
 
@@ skipping 89 matching lines @@
 }
 
 int DatabaseAuthorizer::UpdateDeletesBasedOnTableName(
     const String& table_name) {
   int allow = DenyBasedOnTableName(table_name);
   if (allow)
     had_deletes_ = true;
   return allow;
 }
 
+DEFINE_TRACE(DatabaseAuthorizer) {
+  visitor->Trace(database_context_);
+}
+
 }  // namespace blink