content/browser/indexed_db/indexed_db_callbacks.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/indexed_db/indexed_db_callbacks.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/guid.h"
  10 #include "base/metrics/histogram.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "base/time/time.h"
  13 #include "content/browser/child_process_security_policy_impl.h"
  14 #include "content/browser/fileapi/fileapi_message_filter.h"
  15 #include "content/browser/indexed_db/indexed_db_blob_info.h"
  16 #include "content/browser/indexed_db/indexed_db_connection.h"
  17 #include "content/browser/indexed_db/indexed_db_context_impl.h"
  18 #include "content/browser/indexed_db/indexed_db_cursor.h"
  19 #include "content/browser/indexed_db/indexed_db_database_callbacks.h"
  20 #include "content/browser/indexed_db/indexed_db_database_error.h"
  21 #include "content/browser/indexed_db/indexed_db_metadata.h"
  22 #include "content/browser/indexed_db/indexed_db_value.h"
  23 #include "content/common/indexed_db/indexed_db_constants.h"
  24 #include "content/common/indexed_db/indexed_db_messages.h"
  25 #include "webkit/browser/blob/blob_storage_context.h"
  26 #include "webkit/browser/quota/quota_manager.h"
  27 #include "webkit/common/blob/blob_data.h"
  28 #include "webkit/common/blob/shareable_file_reference.h"
  29
  30 using storage::ShareableFileReference;
  31
  32 namespace content {
  33
  34 namespace {
  35 const int32 kNoCursor = -1;
  36 const int32 kNoDatabaseCallbacks = -1;
  37 const int64 kNoTransaction = -1;
  38 }
  39
  40 IndexedDBCallbacks::IndexedDBCallbacks(IndexedDBDispatcherHost* dispatcher_host,
  41                                        int32 ipc_thread_id,
  42                                        int32 ipc_callbacks_id)
  43     : dispatcher_host_(dispatcher_host),
  44       ipc_callbacks_id_(ipc_callbacks_id),
  45       ipc_thread_id_(ipc_thread_id),
  46       ipc_cursor_id_(kNoCursor),
  47       host_transaction_id_(kNoTransaction),
  48       ipc_database_id_(kNoDatabase),
  49       ipc_database_callbacks_id_(kNoDatabaseCallbacks),
  50       data_loss_(blink::WebIDBDataLossNone),
  51       sent_blocked_(false) {
  52 }
  53
  54 IndexedDBCallbacks::IndexedDBCallbacks(IndexedDBDispatcherHost* dispatcher_host,
  55                                        int32 ipc_thread_id,
  56                                        int32 ipc_callbacks_id,
  57                                        int32 ipc_cursor_id)
  58     : dispatcher_host_(dispatcher_host),
  59       ipc_callbacks_id_(ipc_callbacks_id),
  60       ipc_thread_id_(ipc_thread_id),
  61       ipc_cursor_id_(ipc_cursor_id),
  62       host_transaction_id_(kNoTransaction),
  63       ipc_database_id_(kNoDatabase),
  64       ipc_database_callbacks_id_(kNoDatabaseCallbacks),
  65       data_loss_(blink::WebIDBDataLossNone),
  66       sent_blocked_(false) {
  67 }
  68
  69 IndexedDBCallbacks::IndexedDBCallbacks(IndexedDBDispatcherHost* dispatcher_host,
  70                                        int32 ipc_thread_id,
  71                                        int32 ipc_callbacks_id,
  72                                        int32 ipc_database_callbacks_id,
  73                                        int64 host_transaction_id,
  74                                        const GURL& origin_url)
  75     : dispatcher_host_(dispatcher_host),
  76       ipc_callbacks_id_(ipc_callbacks_id),
  77       ipc_thread_id_(ipc_thread_id),
  78       ipc_cursor_id_(kNoCursor),
  79       host_transaction_id_(host_transaction_id),
  80       origin_url_(origin_url),
  81       ipc_database_id_(kNoDatabase),
  82       ipc_database_callbacks_id_(ipc_database_callbacks_id),
  83       data_loss_(blink::WebIDBDataLossNone),
  84       sent_blocked_(false) {
  85 }
  86
  87 IndexedDBCallbacks::~IndexedDBCallbacks() {}
  88
  89 void IndexedDBCallbacks::OnError(const IndexedDBDatabaseError& error) {
  90   DCHECK(dispatcher_host_.get());
  91
  92   dispatcher_host_->Send(new IndexedDBMsg_CallbacksError(
  93       ipc_thread_id_, ipc_callbacks_id_, error.code(), error.message()));
  94   dispatcher_host_ = NULL;
  95
  96   if (!connection_open_start_time_.is_null()) {
  97     UMA_HISTOGRAM_MEDIUM_TIMES(
  98         "WebCore.IndexedDB.OpenTime.Error",
  99         base::TimeTicks::Now() - connection_open_start_time_);
 100     connection_open_start_time_ = base::TimeTicks();
 101   }
 102 }
 103
 104 void IndexedDBCallbacks::OnSuccess(const std::vector<base::string16>& value) {
 105   DCHECK(dispatcher_host_.get());
 106
 107   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 108   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 109   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 110   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 111   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 112
 113   std::vector<base::string16> list;
 114   for (unsigned i = 0; i < value.size(); ++i)
 115     list.push_back(value[i]);
 116
 117   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessStringList(
 118       ipc_thread_id_, ipc_callbacks_id_, list));
 119   dispatcher_host_ = NULL;
 120 }
 121
 122 void IndexedDBCallbacks::OnBlocked(int64 existing_version) {
 123   DCHECK(dispatcher_host_.get());
 124
 125   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 126   // No transaction/db callbacks for DeleteDatabase.
 127   DCHECK_EQ(kNoTransaction == host_transaction_id_,
 128             kNoDatabaseCallbacks == ipc_database_callbacks_id_);
 129   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 130
 131   if (sent_blocked_)
 132     return;
 133
 134   sent_blocked_ = true;
 135   dispatcher_host_->Send(new IndexedDBMsg_CallbacksIntBlocked(
 136       ipc_thread_id_, ipc_callbacks_id_, existing_version));
 137
 138   if (!connection_open_start_time_.is_null()) {
 139     UMA_HISTOGRAM_MEDIUM_TIMES(
 140         "WebCore.IndexedDB.OpenTime.Blocked",
 141         base::TimeTicks::Now() - connection_open_start_time_);
 142     connection_open_start_time_ = base::TimeTicks();
 143   }
 144 }
 145
 146 void IndexedDBCallbacks::OnDataLoss(blink::WebIDBDataLoss data_loss,
 147                                     std::string data_loss_message) {
 148   DCHECK_NE(blink::WebIDBDataLossNone, data_loss);
 149   data_loss_ = data_loss;
 150   data_loss_message_ = data_loss_message;
 151 }
 152
 153 void IndexedDBCallbacks::OnUpgradeNeeded(
 154     int64 old_version,
 155     scoped_ptr<IndexedDBConnection> connection,
 156     const IndexedDBDatabaseMetadata& metadata) {
 157   DCHECK(dispatcher_host_.get());
 158
 159   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 160   DCHECK_NE(kNoTransaction, host_transaction_id_);
 161   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 162   DCHECK_NE(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 163
 164   dispatcher_host_->RegisterTransactionId(host_transaction_id_, origin_url_);
 165   int32 ipc_database_id =
 166       dispatcher_host_->Add(connection.release(), ipc_thread_id_, origin_url_);
 167   if (ipc_database_id < 0)
 168     return;
 169   ipc_database_id_ = ipc_database_id;
 170   IndexedDBMsg_CallbacksUpgradeNeeded_Params params;
 171   params.ipc_thread_id = ipc_thread_id_;
 172   params.ipc_callbacks_id = ipc_callbacks_id_;
 173   params.ipc_database_id = ipc_database_id;
 174   params.ipc_database_callbacks_id = ipc_database_callbacks_id_;
 175   params.old_version = old_version;
 176   params.idb_metadata = IndexedDBDispatcherHost::ConvertMetadata(metadata);
 177   params.data_loss = data_loss_;
 178   params.data_loss_message = data_loss_message_;
 179   dispatcher_host_->Send(new IndexedDBMsg_CallbacksUpgradeNeeded(params));
 180
 181   if (!connection_open_start_time_.is_null()) {
 182     UMA_HISTOGRAM_MEDIUM_TIMES(
 183         "WebCore.IndexedDB.OpenTime.UpgradeNeeded",
 184         base::TimeTicks::Now() - connection_open_start_time_);
 185     connection_open_start_time_ = base::TimeTicks();
 186   }
 187 }
 188
 189 void IndexedDBCallbacks::OnSuccess(scoped_ptr<IndexedDBConnection> connection,
 190                                    const IndexedDBDatabaseMetadata& metadata) {
 191   DCHECK(dispatcher_host_.get());
 192
 193   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 194   DCHECK_NE(kNoTransaction, host_transaction_id_);
 195   DCHECK_NE(ipc_database_id_ == kNoDatabase, !connection);
 196   DCHECK_NE(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 197
 198   scoped_refptr<IndexedDBCallbacks> self(this);
 199
 200   int32 ipc_object_id = kNoDatabase;
 201   // Only register if the connection was not previously sent in OnUpgradeNeeded.
 202   if (ipc_database_id_ == kNoDatabase) {
 203     ipc_object_id = dispatcher_host_->Add(
 204         connection.release(), ipc_thread_id_, origin_url_);
 205   }
 206
 207   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIDBDatabase(
 208       ipc_thread_id_,
 209       ipc_callbacks_id_,
 210       ipc_database_callbacks_id_,
 211       ipc_object_id,
 212       IndexedDBDispatcherHost::ConvertMetadata(metadata)));
 213   dispatcher_host_ = NULL;
 214
 215   if (!connection_open_start_time_.is_null()) {
 216     UMA_HISTOGRAM_MEDIUM_TIMES(
 217         "WebCore.IndexedDB.OpenTime.Success",
 218         base::TimeTicks::Now() - connection_open_start_time_);
 219     connection_open_start_time_ = base::TimeTicks();
 220   }
 221 }
 222
 223 static std::string CreateBlobData(
 224     const IndexedDBBlobInfo& blob_info,
 225     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
 226     storage::BlobStorageContext* blob_storage_context,
 227     base::TaskRunner* task_runner) {
 228   std::string uuid = blob_info.uuid();
 229   if (!uuid.empty()) {
 230     // We're sending back a live blob, not a reference into our backing store.
 231     scoped_ptr<storage::BlobDataHandle> blob_data_handle(
 232         blob_storage_context->GetBlobDataFromUUID(uuid));
 233     dispatcher_host->HoldBlobDataHandle(uuid, blob_data_handle.Pass());
 234     return uuid;
 235   }
 236   scoped_refptr<ShareableFileReference> shareable_file =
 237       ShareableFileReference::Get(blob_info.file_path());
 238   if (!shareable_file.get()) {
 239     shareable_file = ShareableFileReference::GetOrCreate(
 240         blob_info.file_path(),
 241         ShareableFileReference::DONT_DELETE_ON_FINAL_RELEASE,
 242         task_runner);
 243     if (!blob_info.release_callback().is_null())
 244       shareable_file->AddFinalReleaseCallback(blob_info.release_callback());
 245   }
 246
 247   uuid = base::GenerateGUID();
 248   scoped_refptr<storage::BlobData> blob_data = new storage::BlobData(uuid);
 249   blob_data->AppendFile(
 250       blob_info.file_path(), 0, blob_info.size(), blob_info.last_modified());
 251   scoped_ptr<storage::BlobDataHandle> blob_data_handle(
 252       blob_storage_context->AddFinishedBlob(blob_data.get()));
 253   dispatcher_host->HoldBlobDataHandle(uuid, blob_data_handle.Pass());
 254
 255   return uuid;
 256 }
 257
 258 static bool CreateAllBlobs(
 259     const std::vector<IndexedDBBlobInfo>& blob_info,
 260     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info,
 261     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host) {
 262   DCHECK_EQ(blob_info.size(), blob_or_file_info->size());
 263   size_t i;
 264   if (!dispatcher_host->blob_storage_context())
 265     return false;
 266   for (i = 0; i < blob_info.size(); ++i) {
 267     (*blob_or_file_info)[i].uuid =
 268         CreateBlobData(blob_info[i],
 269                        dispatcher_host,
 270                        dispatcher_host->blob_storage_context(),
 271                        dispatcher_host->Context()->TaskRunner());
 272   }
 273   return true;
 274 }
 275
 276 template <class ParamType, class MsgType>
 277 static void CreateBlobsAndSend(
 278     ParamType* params,
 279     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
 280     const std::vector<IndexedDBBlobInfo>& blob_info,
 281     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info) {
 282   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 283   if (CreateAllBlobs(blob_info, blob_or_file_info, dispatcher_host))
 284     dispatcher_host->Send(new MsgType(*params));
 285 }
 286
 287 static void BlobLookupForCursorPrefetch(
 288     IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params* params,
 289     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
 290     const std::vector<IndexedDBValue>& values) {
 291   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 292   DCHECK_EQ(values.size(), params->blob_or_file_infos.size());
 293
 294   std::vector<IndexedDBValue>::const_iterator value_iter;
 295   std::vector<std::vector<IndexedDBMsg_BlobOrFileInfo> >::iterator blob_iter;
 296   for (value_iter = values.begin(), blob_iter =
 297        params->blob_or_file_infos.begin(); value_iter != values.end();
 298        ++value_iter, ++blob_iter) {
 299     if (!CreateAllBlobs(value_iter->blob_info, &*blob_iter, dispatcher_host))
 300       return;
 301   }
 302   dispatcher_host->Send(
 303       new IndexedDBMsg_CallbacksSuccessCursorPrefetch(*params));
 304 }
 305
 306 static void FillInBlobData(
 307     const std::vector<IndexedDBBlobInfo>& blob_info,
 308     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info) {
 309   for (std::vector<IndexedDBBlobInfo>::const_iterator iter = blob_info.begin();
 310        iter != blob_info.end();
 311        ++iter) {
 312     if (iter->is_file()) {
 313       IndexedDBMsg_BlobOrFileInfo info;
 314       info.is_file = true;
 315       info.mime_type = iter->type();
 316       info.file_name = iter->file_name();
 317       info.file_path = iter->file_path().AsUTF16Unsafe();
 318       info.size = iter->size();
 319       info.last_modified = iter->last_modified().ToDoubleT();
 320       blob_or_file_info->push_back(info);
 321     } else {
 322       IndexedDBMsg_BlobOrFileInfo info;
 323       info.mime_type = iter->type();
 324       info.size = iter->size();
 325       blob_or_file_info->push_back(info);
 326     }
 327   }
 328 }
 329
 330 void IndexedDBCallbacks::RegisterBlobsAndSend(
 331     const std::vector<IndexedDBBlobInfo>& blob_info,
 332     const base::Closure& callback) {
 333   std::vector<IndexedDBBlobInfo>::const_iterator iter;
 334   for (iter = blob_info.begin(); iter != blob_info.end(); ++iter) {
 335     if (!iter->mark_used_callback().is_null())
 336       iter->mark_used_callback().Run();
 337   }
 338   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::IO));
 339   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, callback);
 340 }
 341
 342 void IndexedDBCallbacks::OnSuccess(scoped_refptr<IndexedDBCursor> cursor,
 343                                    const IndexedDBKey& key,
 344                                    const IndexedDBKey& primary_key,
 345                                    IndexedDBValue* value) {
 346   DCHECK(dispatcher_host_.get());
 347
 348   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 349   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 350   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 351   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 352   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 353
 354   int32 ipc_object_id = dispatcher_host_->Add(cursor.get());
 355   scoped_ptr<IndexedDBMsg_CallbacksSuccessIDBCursor_Params> params(
 356       new IndexedDBMsg_CallbacksSuccessIDBCursor_Params());
 357   params->ipc_thread_id = ipc_thread_id_;
 358   params->ipc_callbacks_id = ipc_callbacks_id_;
 359   params->ipc_cursor_id = ipc_object_id;
 360   params->key = key;
 361   params->primary_key = primary_key;
 362   if (value && !value->empty())
 363     std::swap(params->value, value->bits);
 364   // TODO(alecflett): Avoid a copy here: the whole params object is
 365   // being copied into the message.
 366   if (!value || value->blob_info.empty()) {
 367     dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIDBCursor(*params));
 368   } else {
 369     IndexedDBMsg_CallbacksSuccessIDBCursor_Params* p = params.get();
 370     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 371     RegisterBlobsAndSend(
 372         value->blob_info,
 373         base::Bind(
 374             CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessIDBCursor_Params,
 375                                IndexedDBMsg_CallbacksSuccessIDBCursor>,
 376             base::Owned(params.release()),
 377             dispatcher_host_,
 378             value->blob_info,
 379             base::Unretained(&p->blob_or_file_info)));
 380   }
 381   dispatcher_host_ = NULL;
 382 }
 383
 384 void IndexedDBCallbacks::OnSuccess(const IndexedDBKey& key,
 385                                    const IndexedDBKey& primary_key,
 386                                    IndexedDBValue* value) {
 387   DCHECK(dispatcher_host_.get());
 388
 389   DCHECK_NE(kNoCursor, ipc_cursor_id_);
 390   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 391   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 392   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 393   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 394
 395   IndexedDBCursor* idb_cursor =
 396       dispatcher_host_->GetCursorFromId(ipc_cursor_id_);
 397
 398   DCHECK(idb_cursor);
 399   if (!idb_cursor)
 400     return;
 401
 402   scoped_ptr<IndexedDBMsg_CallbacksSuccessCursorContinue_Params> params(
 403       new IndexedDBMsg_CallbacksSuccessCursorContinue_Params());
 404   params->ipc_thread_id = ipc_thread_id_;
 405   params->ipc_callbacks_id = ipc_callbacks_id_;
 406   params->ipc_cursor_id = ipc_cursor_id_;
 407   params->key = key;
 408   params->primary_key = primary_key;
 409   if (value && !value->empty())
 410     std::swap(params->value, value->bits);
 411   // TODO(alecflett): Avoid a copy here: the whole params object is
 412   // being copied into the message.
 413   if (!value || value->blob_info.empty()) {
 414     dispatcher_host_->Send(
 415         new IndexedDBMsg_CallbacksSuccessCursorContinue(*params));
 416   } else {
 417     IndexedDBMsg_CallbacksSuccessCursorContinue_Params* p = params.get();
 418     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 419     RegisterBlobsAndSend(
 420         value->blob_info,
 421         base::Bind(CreateBlobsAndSend<
 422                        IndexedDBMsg_CallbacksSuccessCursorContinue_Params,
 423                        IndexedDBMsg_CallbacksSuccessCursorContinue>,
 424                    base::Owned(params.release()),
 425                    dispatcher_host_,
 426                    value->blob_info,
 427                    base::Unretained(&p->blob_or_file_info)));
 428   }
 429   dispatcher_host_ = NULL;
 430 }
 431
 432 void IndexedDBCallbacks::OnSuccessWithPrefetch(
 433     const std::vector<IndexedDBKey>& keys,
 434     const std::vector<IndexedDBKey>& primary_keys,
 435     std::vector<IndexedDBValue>* values) {
 436   DCHECK_EQ(keys.size(), primary_keys.size());
 437   DCHECK_EQ(keys.size(), values->size());
 438
 439   DCHECK(dispatcher_host_.get());
 440
 441   DCHECK_NE(kNoCursor, ipc_cursor_id_);
 442   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 443   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 444   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 445   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 446
 447   std::vector<IndexedDBKey> msgKeys;
 448   std::vector<IndexedDBKey> msgPrimaryKeys;
 449
 450   for (size_t i = 0; i < keys.size(); ++i) {
 451     msgKeys.push_back(keys[i]);
 452     msgPrimaryKeys.push_back(primary_keys[i]);
 453   }
 454
 455   scoped_ptr<IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params> params(
 456       new IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params());
 457   params->ipc_thread_id = ipc_thread_id_;
 458   params->ipc_callbacks_id = ipc_callbacks_id_;
 459   params->ipc_cursor_id = ipc_cursor_id_;
 460   params->keys = msgKeys;
 461   params->primary_keys = msgPrimaryKeys;
 462   std::vector<std::string>& values_bits = params->values;
 463   values_bits.resize(values->size());
 464   std::vector<std::vector<IndexedDBMsg_BlobOrFileInfo> >& values_blob_infos =
 465       params->blob_or_file_infos;
 466   values_blob_infos.resize(values->size());
 467
 468   bool found_blob_info = false;
 469   std::vector<IndexedDBValue>::iterator iter = values->begin();
 470   for (size_t i = 0; iter != values->end(); ++iter, ++i) {
 471     values_bits[i].swap(iter->bits);
 472     if (iter->blob_info.size()) {
 473       found_blob_info = true;
 474       FillInBlobData(iter->blob_info, &values_blob_infos[i]);
 475       std::vector<IndexedDBBlobInfo>::const_iterator blob_iter;
 476       for (blob_iter = iter->blob_info.begin();
 477            blob_iter != iter->blob_info.end();
 478            ++blob_iter) {
 479         if (!blob_iter->mark_used_callback().is_null())
 480           blob_iter->mark_used_callback().Run();
 481       }
 482     }
 483   }
 484
 485   if (found_blob_info) {
 486     BrowserThread::PostTask(BrowserThread::IO,
 487                             FROM_HERE,
 488                             base::Bind(BlobLookupForCursorPrefetch,
 489                                        base::Owned(params.release()),
 490                                        dispatcher_host_,
 491                                        *values));
 492   } else {
 493     dispatcher_host_->Send(
 494         new IndexedDBMsg_CallbacksSuccessCursorPrefetch(*params.get()));
 495   }
 496   dispatcher_host_ = NULL;
 497 }
 498
 499 void IndexedDBCallbacks::OnSuccess(IndexedDBValue* value,
 500                                    const IndexedDBKey& key,
 501                                    const IndexedDBKeyPath& key_path) {
 502   DCHECK(dispatcher_host_.get());
 503
 504   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 505   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 506   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 507   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 508   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 509
 510   scoped_ptr<IndexedDBMsg_CallbacksSuccessValueWithKey_Params> params(
 511       new IndexedDBMsg_CallbacksSuccessValueWithKey_Params());
 512   params->ipc_thread_id = ipc_thread_id_;
 513   params->ipc_callbacks_id = ipc_callbacks_id_;
 514   params->primary_key = key;
 515   params->key_path = key_path;
 516   if (value && !value->empty())
 517     std::swap(params->value, value->bits);
 518   if (!value || value->blob_info.empty()) {
 519     dispatcher_host_->Send(
 520         new IndexedDBMsg_CallbacksSuccessValueWithKey(*params));
 521   } else {
 522     IndexedDBMsg_CallbacksSuccessValueWithKey_Params* p = params.get();
 523     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 524     RegisterBlobsAndSend(
 525         value->blob_info,
 526         base::Bind(
 527             CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessValueWithKey_Params,
 528                                IndexedDBMsg_CallbacksSuccessValueWithKey>,
 529             base::Owned(params.release()),
 530             dispatcher_host_,
 531             value->blob_info,
 532             base::Unretained(&p->blob_or_file_info)));
 533   }
 534   dispatcher_host_ = NULL;
 535 }
 536
 537 void IndexedDBCallbacks::OnSuccess(IndexedDBValue* value) {
 538   DCHECK(dispatcher_host_.get());
 539   DCHECK(kNoCursor == ipc_cursor_id_ || value == NULL);
 540   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 541   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 542   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 543   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 544
 545   scoped_ptr<IndexedDBMsg_CallbacksSuccessValue_Params> params(
 546       new IndexedDBMsg_CallbacksSuccessValue_Params());
 547   params->ipc_thread_id = ipc_thread_id_;
 548   params->ipc_callbacks_id = ipc_callbacks_id_;
 549   if (value && !value->empty())
 550     std::swap(params->value, value->bits);
 551   if (!value || value->blob_info.empty()) {
 552     dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessValue(*params));
 553   } else {
 554     IndexedDBMsg_CallbacksSuccessValue_Params* p = params.get();
 555     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 556     RegisterBlobsAndSend(
 557         value->blob_info,
 558         base::Bind(CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessValue_Params,
 559                                       IndexedDBMsg_CallbacksSuccessValue>,
 560                    base::Owned(params.release()),
 561                    dispatcher_host_,
 562                    value->blob_info,
 563                    base::Unretained(&p->blob_or_file_info)));
 564   }
 565   dispatcher_host_ = NULL;
 566 }
 567
 568 void IndexedDBCallbacks::OnSuccess(const IndexedDBKey& value) {
 569   DCHECK(dispatcher_host_.get());
 570
 571   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 572   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 573   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 574   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 575   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 576
 577   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIndexedDBKey(
 578       ipc_thread_id_, ipc_callbacks_id_, value));
 579   dispatcher_host_ = NULL;
 580 }
 581
 582 void IndexedDBCallbacks::OnSuccess(int64 value) {
 583   DCHECK(dispatcher_host_.get());
 584
 585   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 586   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 587   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 588   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 589   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 590
 591   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessInteger(
 592       ipc_thread_id_, ipc_callbacks_id_, value));
 593   dispatcher_host_ = NULL;
 594 }
 595
 596 void IndexedDBCallbacks::OnSuccess() {
 597   DCHECK(dispatcher_host_.get());
 598
 599   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 600   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 601   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 602   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 603   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 604
 605   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessUndefined(
 606       ipc_thread_id_, ipc_callbacks_id_));
 607   dispatcher_host_ = NULL;
 608 }
 609
 610 void IndexedDBCallbacks::SetConnectionOpenStartTime(
 611     const base::TimeTicks& start_time) {
 612   connection_open_start_time_ = start_time;
 613 }
 614
 615 }  // namespace content