[Activity Log] when extension is uninstalled, delete data about it

chrome/browser/extensions/activity_log/fullstream_ui_policy.cc

Index: chrome/browser/extensions/activity_log/fullstream_ui_policy.cc
diff --git a/chrome/browser/extensions/activity_log/fullstream_ui_policy.cc b/chrome/browser/extensions/activity_log/fullstream_ui_policy.cc
index 84f8a9ea6564562867f2329b0406ba0c679d58cd..f4d414384b0eb02d4e3d0efb8d268c6efcc74fd2 100644
--- a/chrome/browser/extensions/activity_log/fullstream_ui_policy.cc
+++ b/chrome/browser/extensions/activity_log/fullstream_ui_policy.cc
@@ -282,6 +282,33 @@ void FullStreamUIPolicy::DoRemoveURLs(const std::vector<GURL>& restrict_urls) {
   }
 }
 
+void FullStreamUIPolicy::DoRemoveExtensionData(
+    const std::string& extension_id) {
+  if (extension_id.empty())
+    return;
+
+  sql::Connection* db = GetDatabaseConnection();
+  if (!db) {
+    LOG(ERROR) << "Unable to connect to database";
+    return;
+  }
+
+  // Make sure any queued in memory are sent to the database before cleaning.
+  activity_database()->AdviseFlush(ActivityDatabase::kFlushImmediately);
+
+  std::string sql_str = base::StringPrintf(
+      "DELETE FROM %s WHERE extension_id=?", kTableName);
+  sql::Statement statement;
+  statement.Assign(
+      db->GetCachedStatement(sql::StatementID(SQL_FROM_HERE), sql_str.c_str()));
+  statement.BindString(0, extension_id);
+  if (!statement.Run()) {
+    LOG(ERROR) << "Removing URLs for extension "
+               << extension_id << "from database failed: "
+               << statement.GetSQLStatement();
+  }
+}
+
 void FullStreamUIPolicy::DoDeleteDatabase() {
   sql::Connection* db = GetDatabaseConnection();
   if (!db) {
@@ -351,6 +378,11 @@ void FullStreamUIPolicy::RemoveURLs(const std::vector<GURL>& restrict_urls) {
   ScheduleAndForget(this, &FullStreamUIPolicy::DoRemoveURLs, restrict_urls);
 }
 
+void FullStreamUIPolicy::RemoveExtensionData(const std::string& extension_id) {
+  ScheduleAndForget(
+      this, &FullStreamUIPolicy::DoRemoveExtensionData, extension_id);
+}
+
 void FullStreamUIPolicy::DeleteDatabase() {
   ScheduleAndForget(this, &FullStreamUIPolicy::DoDeleteDatabase);
 }