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