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_value.h"
  22 #include "content/common/indexed_db/indexed_db_constants.h"
  23 #include "content/common/indexed_db/indexed_db_messages.h"
  24 #include "storage/browser/blob/blob_storage_context.h"
  25 #include "storage/browser/quota/quota_manager.h"
  26 #include "storage/common/blob/blob_data.h"
  27 #include "storage/common/blob/shareable_file_reference.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(BrowserThread::CurrentlyOn(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(BrowserThread::CurrentlyOn(BrowserThread::IO));
 276   DCHECK_EQ(values.size(), params->blob_or_file_infos.size());
 277
 278   std::vector<IndexedDBValue>::const_iterator value_iter;
 279   std::vector<std::vector<IndexedDBMsg_BlobOrFileInfo> >::iterator blob_iter;
 280   for (value_iter = values.begin(), blob_iter =
 281        params->blob_or_file_infos.begin(); value_iter != values.end();
 282        ++value_iter, ++blob_iter) {
 283     if (!CreateAllBlobs(value_iter->blob_info, &*blob_iter, dispatcher_host))
 284       return;
 285   }
 286   dispatcher_host->Send(
 287       new IndexedDBMsg_CallbacksSuccessCursorPrefetch(*params));
 288 }
 289
 290 static void FillInBlobData(
 291     const std::vector<IndexedDBBlobInfo>& blob_info,
 292     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info) {
 293   for (const auto& iter : blob_info) {
 294     if (iter.is_file()) {
 295       IndexedDBMsg_BlobOrFileInfo info;
 296       info.is_file = true;
 297       info.mime_type = iter.type();
 298       info.file_name = iter.file_name();
 299       info.file_path = iter.file_path().AsUTF16Unsafe();
 300       info.size = iter.size();
 301       info.last_modified = iter.last_modified().ToDoubleT();
 302       blob_or_file_info->push_back(info);
 303     } else {
 304       IndexedDBMsg_BlobOrFileInfo info;
 305       info.mime_type = iter.type();
 306       info.size = iter.size();
 307       blob_or_file_info->push_back(info);
 308     }
 309   }
 310 }
 311
 312 void IndexedDBCallbacks::RegisterBlobsAndSend(
 313     const std::vector<IndexedDBBlobInfo>& blob_info,
 314     const base::Closure& callback) {
 315   for (const auto& iter : blob_info) {
 316     if (!iter.mark_used_callback().is_null())
 317       iter.mark_used_callback().Run();
 318   }
 319   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::IO));
 320   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, callback);
 321 }
 322
 323 void IndexedDBCallbacks::OnSuccess(scoped_refptr<IndexedDBCursor> cursor,
 324                                    const IndexedDBKey& key,
 325                                    const IndexedDBKey& primary_key,
 326                                    IndexedDBValue* value) {
 327   DCHECK(dispatcher_host_.get());
 328
 329   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 330   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 331   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 332   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 333   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 334
 335   int32 ipc_object_id = dispatcher_host_->Add(cursor.get());
 336   scoped_ptr<IndexedDBMsg_CallbacksSuccessIDBCursor_Params> params(
 337       new IndexedDBMsg_CallbacksSuccessIDBCursor_Params());
 338   params->ipc_thread_id = ipc_thread_id_;
 339   params->ipc_callbacks_id = ipc_callbacks_id_;
 340   params->ipc_cursor_id = ipc_object_id;
 341   params->key = key;
 342   params->primary_key = primary_key;
 343   if (value && !value->empty())
 344     std::swap(params->value, value->bits);
 345   // TODO(alecflett): Avoid a copy here: the whole params object is
 346   // being copied into the message.
 347   if (!value || value->blob_info.empty()) {
 348     dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIDBCursor(*params));
 349   } else {
 350     IndexedDBMsg_CallbacksSuccessIDBCursor_Params* p = params.get();
 351     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 352     RegisterBlobsAndSend(
 353         value->blob_info,
 354         base::Bind(
 355             CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessIDBCursor_Params,
 356                                IndexedDBMsg_CallbacksSuccessIDBCursor>,
 357             base::Owned(params.release()),
 358             dispatcher_host_,
 359             value->blob_info,
 360             base::Unretained(&p->blob_or_file_info)));
 361   }
 362   dispatcher_host_ = NULL;
 363 }
 364
 365 void IndexedDBCallbacks::OnSuccess(const IndexedDBKey& key,
 366                                    const IndexedDBKey& primary_key,
 367                                    IndexedDBValue* value) {
 368   DCHECK(dispatcher_host_.get());
 369
 370   DCHECK_NE(kNoCursor, ipc_cursor_id_);
 371   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 372   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 373   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 374   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 375
 376   IndexedDBCursor* idb_cursor =
 377       dispatcher_host_->GetCursorFromId(ipc_cursor_id_);
 378
 379   DCHECK(idb_cursor);
 380   if (!idb_cursor)
 381     return;
 382
 383   scoped_ptr<IndexedDBMsg_CallbacksSuccessCursorContinue_Params> params(
 384       new IndexedDBMsg_CallbacksSuccessCursorContinue_Params());
 385   params->ipc_thread_id = ipc_thread_id_;
 386   params->ipc_callbacks_id = ipc_callbacks_id_;
 387   params->ipc_cursor_id = ipc_cursor_id_;
 388   params->key = key;
 389   params->primary_key = primary_key;
 390   if (value && !value->empty())
 391     std::swap(params->value, value->bits);
 392   // TODO(alecflett): Avoid a copy here: the whole params object is
 393   // being copied into the message.
 394   if (!value || value->blob_info.empty()) {
 395     dispatcher_host_->Send(
 396         new IndexedDBMsg_CallbacksSuccessCursorContinue(*params));
 397   } else {
 398     IndexedDBMsg_CallbacksSuccessCursorContinue_Params* p = params.get();
 399     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 400     RegisterBlobsAndSend(
 401         value->blob_info,
 402         base::Bind(CreateBlobsAndSend<
 403                        IndexedDBMsg_CallbacksSuccessCursorContinue_Params,
 404                        IndexedDBMsg_CallbacksSuccessCursorContinue>,
 405                    base::Owned(params.release()),
 406                    dispatcher_host_,
 407                    value->blob_info,
 408                    base::Unretained(&p->blob_or_file_info)));
 409   }
 410   dispatcher_host_ = NULL;
 411 }
 412
 413 void IndexedDBCallbacks::OnSuccessWithPrefetch(
 414     const std::vector<IndexedDBKey>& keys,
 415     const std::vector<IndexedDBKey>& primary_keys,
 416     std::vector<IndexedDBValue>* values) {
 417   DCHECK_EQ(keys.size(), primary_keys.size());
 418   DCHECK_EQ(keys.size(), values->size());
 419
 420   DCHECK(dispatcher_host_.get());
 421
 422   DCHECK_NE(kNoCursor, ipc_cursor_id_);
 423   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 424   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 425   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 426   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 427
 428   std::vector<IndexedDBKey> msgKeys;
 429   std::vector<IndexedDBKey> msgPrimaryKeys;
 430
 431   for (size_t i = 0; i < keys.size(); ++i) {
 432     msgKeys.push_back(keys[i]);
 433     msgPrimaryKeys.push_back(primary_keys[i]);
 434   }
 435
 436   scoped_ptr<IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params> params(
 437       new IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params());
 438   params->ipc_thread_id = ipc_thread_id_;
 439   params->ipc_callbacks_id = ipc_callbacks_id_;
 440   params->ipc_cursor_id = ipc_cursor_id_;
 441   params->keys = msgKeys;
 442   params->primary_keys = msgPrimaryKeys;
 443   std::vector<std::string>& values_bits = params->values;
 444   values_bits.resize(values->size());
 445   std::vector<std::vector<IndexedDBMsg_BlobOrFileInfo> >& values_blob_infos =
 446       params->blob_or_file_infos;
 447   values_blob_infos.resize(values->size());
 448
 449   bool found_blob_info = false;
 450   std::vector<IndexedDBValue>::iterator iter = values->begin();
 451   for (size_t i = 0; iter != values->end(); ++iter, ++i) {
 452     values_bits[i].swap(iter->bits);
 453     if (iter->blob_info.size()) {
 454       found_blob_info = true;
 455       FillInBlobData(iter->blob_info, &values_blob_infos[i]);
 456       for (const auto& blob_iter : iter->blob_info) {
 457         if (!blob_iter.mark_used_callback().is_null())
 458           blob_iter.mark_used_callback().Run();
 459       }
 460     }
 461   }
 462
 463   if (found_blob_info) {
 464     BrowserThread::PostTask(BrowserThread::IO,
 465                             FROM_HERE,
 466                             base::Bind(BlobLookupForCursorPrefetch,
 467                                        base::Owned(params.release()),
 468                                        dispatcher_host_,
 469                                        *values));
 470   } else {
 471     dispatcher_host_->Send(
 472         new IndexedDBMsg_CallbacksSuccessCursorPrefetch(*params.get()));
 473   }
 474   dispatcher_host_ = NULL;
 475 }
 476
 477 void IndexedDBCallbacks::OnSuccess(IndexedDBValue* value,
 478                                    const IndexedDBKey& key,
 479                                    const IndexedDBKeyPath& key_path) {
 480   DCHECK(dispatcher_host_.get());
 481
 482   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 483   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 484   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 485   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 486   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 487
 488   scoped_ptr<IndexedDBMsg_CallbacksSuccessValueWithKey_Params> params(
 489       new IndexedDBMsg_CallbacksSuccessValueWithKey_Params());
 490   params->ipc_thread_id = ipc_thread_id_;
 491   params->ipc_callbacks_id = ipc_callbacks_id_;
 492   params->primary_key = key;
 493   params->key_path = key_path;
 494   if (value && !value->empty())
 495     std::swap(params->value, value->bits);
 496   if (!value || value->blob_info.empty()) {
 497     dispatcher_host_->Send(
 498         new IndexedDBMsg_CallbacksSuccessValueWithKey(*params));
 499   } else {
 500     IndexedDBMsg_CallbacksSuccessValueWithKey_Params* p = params.get();
 501     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 502     RegisterBlobsAndSend(
 503         value->blob_info,
 504         base::Bind(
 505             CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessValueWithKey_Params,
 506                                IndexedDBMsg_CallbacksSuccessValueWithKey>,
 507             base::Owned(params.release()),
 508             dispatcher_host_,
 509             value->blob_info,
 510             base::Unretained(&p->blob_or_file_info)));
 511   }
 512   dispatcher_host_ = NULL;
 513 }
 514
 515 void IndexedDBCallbacks::OnSuccess(IndexedDBValue* value) {
 516   DCHECK(dispatcher_host_.get());
 517   DCHECK(kNoCursor == ipc_cursor_id_ || value == NULL);
 518   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 519   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 520   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 521   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 522
 523   scoped_ptr<IndexedDBMsg_CallbacksSuccessValue_Params> params(
 524       new IndexedDBMsg_CallbacksSuccessValue_Params());
 525   params->ipc_thread_id = ipc_thread_id_;
 526   params->ipc_callbacks_id = ipc_callbacks_id_;
 527   if (value && !value->empty())
 528     std::swap(params->value, value->bits);
 529   if (!value || value->blob_info.empty()) {
 530     dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessValue(*params));
 531   } else {
 532     IndexedDBMsg_CallbacksSuccessValue_Params* p = params.get();
 533     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 534     RegisterBlobsAndSend(
 535         value->blob_info,
 536         base::Bind(CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessValue_Params,
 537                                       IndexedDBMsg_CallbacksSuccessValue>,
 538                    base::Owned(params.release()),
 539                    dispatcher_host_,
 540                    value->blob_info,
 541                    base::Unretained(&p->blob_or_file_info)));
 542   }
 543   dispatcher_host_ = NULL;
 544 }
 545
 546 void IndexedDBCallbacks::OnSuccess(const IndexedDBKey& value) {
 547   DCHECK(dispatcher_host_.get());
 548
 549   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 550   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 551   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 552   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 553   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 554
 555   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIndexedDBKey(
 556       ipc_thread_id_, ipc_callbacks_id_, value));
 557   dispatcher_host_ = NULL;
 558 }
 559
 560 void IndexedDBCallbacks::OnSuccess(int64 value) {
 561   DCHECK(dispatcher_host_.get());
 562
 563   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 564   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 565   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 566   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 567   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 568
 569   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessInteger(
 570       ipc_thread_id_, ipc_callbacks_id_, value));
 571   dispatcher_host_ = NULL;
 572 }
 573
 574 void IndexedDBCallbacks::OnSuccess() {
 575   DCHECK(dispatcher_host_.get());
 576
 577   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 578   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 579   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 580   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 581   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 582
 583   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessUndefined(
 584       ipc_thread_id_, ipc_callbacks_id_));
 585   dispatcher_host_ = NULL;
 586 }
 587
 588 void IndexedDBCallbacks::SetConnectionOpenStartTime(
 589     const base::TimeTicks& start_time) {
 590   connection_open_start_time_ = start_time;
 591 }
 592
 593 }  // namespace content