Merge 32883 - Increasing the default DB quota for extensions from 5MB to 50MB...

webkit/database/database_tracker.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/database/database_tracker.h"
 
 #include <vector>
 
 #include "app/sql/connection.h"
 #include "app/sql/meta_table.h"
 #include "app/sql/statement.h"
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/string_util.h"
 #include "webkit/database/databases_table.h"
 
 namespace webkit_database {
 
 const FilePath::CharType kDatabaseDirectoryName[] =
     FILE_PATH_LITERAL("databases");
 const FilePath::CharType kTrackerDatabaseFileName[] =
     FILE_PATH_LITERAL("Databases.db");
 const int kCurrentVersion = 1;
 const int kCompatibleVersion = 1;
 const int64 kDefaultQuota = 5 * 1024 * 1024;
+const int64 kDefaultExtensionQuota = 50 * 1024 * 1024;
+const char* kExtensionOriginIdentifierPrefix = "chrome-extension_";
 
 DatabaseTracker::DatabaseTracker(const FilePath& profile_path)
     : initialized_(false),
       db_dir_(profile_path.Append(FilePath(kDatabaseDirectoryName))),
       db_(new sql::Connection()),
       databases_table_(NULL),
       meta_table_(NULL) {
 }
 
 DatabaseTracker::~DatabaseTracker() {
@@ skipping 184 matching lines @@
 }
 
 int64 DatabaseTracker::GetOriginUsage(const string16& origin_identifier) {
   CachedOriginInfo* origin_info = GetCachedOriginInfo(origin_identifier);
   if (!origin_info)
     return kint64max;
   return origin_info->TotalSize();
 }
 
 int64 DatabaseTracker::GetOriginQuota(
-    const string16& /*origin_identifier*/) const {
+    const string16& origin_identifier) const {
+  if (StartsWith(origin_identifier,
+                 ASCIIToUTF16(kExtensionOriginIdentifierPrefix), true)) {
+    return kDefaultExtensionQuota;
+  }
+
   return kDefaultQuota;
 }
 
 int64 DatabaseTracker::GetOriginSpaceAvailable(
     const string16& origin_identifier) {
   int64 space_available = GetOriginQuota(origin_identifier) -
       GetOriginUsage(origin_identifier);
   return (space_available < 0 ? 0 : space_available);
 }
 
 }  // namespace webkit_database