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 "storage/browser/blob/blob_storage_context.h"
  26 #include "storage/browser/quota/quota_manager.h"
  27 #include "storage/common/blob/blob_data.h"
  28 #include "storage/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->set_content_type(base::UTF16ToUTF8(blob_info.type()));
 250   blob_data->AppendFile(
 251       blob_info.file_path(), 0, blob_info.size(), blob_info.last_modified());
 252   scoped_ptr<storage::BlobDataHandle> blob_data_handle(
 253       blob_storage_context->AddFinishedBlob(blob_data.get()));
 254   dispatcher_host->HoldBlobDataHandle(uuid, blob_data_handle.Pass());
 255
 256   return uuid;
 257 }
 258
 259 static bool CreateAllBlobs(
 260     const std::vector<IndexedDBBlobInfo>& blob_info,
 261     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info,
 262     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host) {
 263   DCHECK_EQ(blob_info.size(), blob_or_file_info->size());
 264   size_t i;
 265   if (!dispatcher_host->blob_storage_context())
 266     return false;
 267   for (i = 0; i < blob_info.size(); ++i) {
 268     (*blob_or_file_info)[i].uuid =
 269         CreateBlobData(blob_info[i],
 270                        dispatcher_host,
 271                        dispatcher_host->blob_storage_context(),
 272                        dispatcher_host->Context()->TaskRunner());
 273   }
 274   return true;
 275 }
 276
 277 template <class ParamType, class MsgType>
 278 static void CreateBlobsAndSend(
 279     ParamType* params,
 280     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
 281     const std::vector<IndexedDBBlobInfo>& blob_info,
 282     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info) {
 283   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 284   if (CreateAllBlobs(blob_info, blob_or_file_info, dispatcher_host))
 285     dispatcher_host->Send(new MsgType(*params));
 286 }
 287
 288 static void BlobLookupForCursorPrefetch(
 289     IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params* params,
 290     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host,
 291     const std::vector<IndexedDBValue>& values) {
 292   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 293   DCHECK_EQ(values.size(), params->blob_or_file_infos.size());
 294
 295   std::vector<IndexedDBValue>::const_iterator value_iter;
 296   std::vector<std::vector<IndexedDBMsg_BlobOrFileInfo> >::iterator blob_iter;
 297   for (value_iter = values.begin(), blob_iter =
 298        params->blob_or_file_infos.begin(); value_iter != values.end();
 299        ++value_iter, ++blob_iter) {
 300     if (!CreateAllBlobs(value_iter->blob_info, &*blob_iter, dispatcher_host))
 301       return;
 302   }
 303   dispatcher_host->Send(
 304       new IndexedDBMsg_CallbacksSuccessCursorPrefetch(*params));
 305 }
 306
 307 static void FillInBlobData(
 308     const std::vector<IndexedDBBlobInfo>& blob_info,
 309     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info) {
 310   for (const auto& iter : blob_info) {
 311     if (iter.is_file()) {
 312       IndexedDBMsg_BlobOrFileInfo info;
 313       info.is_file = true;
 314       info.mime_type = iter.type();
 315       info.file_name = iter.file_name();
 316       info.file_path = iter.file_path().AsUTF16Unsafe();
 317       info.size = iter.size();
 318       info.last_modified = iter.last_modified().ToDoubleT();
 319       blob_or_file_info->push_back(info);
 320     } else {
 321       IndexedDBMsg_BlobOrFileInfo info;
 322       info.mime_type = iter.type();
 323       info.size = iter.size();
 324       blob_or_file_info->push_back(info);
 325     }
 326   }
 327 }
 328
 329 void IndexedDBCallbacks::RegisterBlobsAndSend(
 330     const std::vector<IndexedDBBlobInfo>& blob_info,
 331     const base::Closure& callback) {
 332   for (const auto& iter : blob_info) {
 333     if (!iter.mark_used_callback().is_null())
 334       iter.mark_used_callback().Run();
 335   }
 336   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::IO));
 337   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, callback);
 338 }
 339
 340 void IndexedDBCallbacks::OnSuccess(scoped_refptr<IndexedDBCursor> cursor,
 341                                    const IndexedDBKey& key,
 342                                    const IndexedDBKey& primary_key,
 343                                    IndexedDBValue* value) {
 344   DCHECK(dispatcher_host_.get());
 345
 346   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 347   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 348   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 349   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 350   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 351
 352   int32 ipc_object_id = dispatcher_host_->Add(cursor.get());
 353   scoped_ptr<IndexedDBMsg_CallbacksSuccessIDBCursor_Params> params(
 354       new IndexedDBMsg_CallbacksSuccessIDBCursor_Params());
 355   params->ipc_thread_id = ipc_thread_id_;
 356   params->ipc_callbacks_id = ipc_callbacks_id_;
 357   params->ipc_cursor_id = ipc_object_id;
 358   params->key = key;
 359   params->primary_key = primary_key;
 360   if (value && !value->empty())
 361     std::swap(params->value, value->bits);
 362   // TODO(alecflett): Avoid a copy here: the whole params object is
 363   // being copied into the message.
 364   if (!value || value->blob_info.empty()) {
 365     dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIDBCursor(*params));
 366   } else {
 367     IndexedDBMsg_CallbacksSuccessIDBCursor_Params* p = params.get();
 368     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 369     RegisterBlobsAndSend(
 370         value->blob_info,
 371         base::Bind(
 372             CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessIDBCursor_Params,
 373                                IndexedDBMsg_CallbacksSuccessIDBCursor>,
 374             base::Owned(params.release()),
 375             dispatcher_host_,
 376             value->blob_info,
 377             base::Unretained(&p->blob_or_file_info)));
 378   }
 379   dispatcher_host_ = NULL;
 380 }
 381
 382 void IndexedDBCallbacks::OnSuccess(const IndexedDBKey& key,
 383                                    const IndexedDBKey& primary_key,
 384                                    IndexedDBValue* value) {
 385   DCHECK(dispatcher_host_.get());
 386
 387   DCHECK_NE(kNoCursor, ipc_cursor_id_);
 388   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 389   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 390   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 391   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 392
 393   IndexedDBCursor* idb_cursor =
 394       dispatcher_host_->GetCursorFromId(ipc_cursor_id_);
 395
 396   DCHECK(idb_cursor);
 397   if (!idb_cursor)
 398     return;
 399
 400   scoped_ptr<IndexedDBMsg_CallbacksSuccessCursorContinue_Params> params(
 401       new IndexedDBMsg_CallbacksSuccessCursorContinue_Params());
 402   params->ipc_thread_id = ipc_thread_id_;
 403   params->ipc_callbacks_id = ipc_callbacks_id_;
 404   params->ipc_cursor_id = ipc_cursor_id_;
 405   params->key = key;
 406   params->primary_key = primary_key;
 407   if (value && !value->empty())
 408     std::swap(params->value, value->bits);
 409   // TODO(alecflett): Avoid a copy here: the whole params object is
 410   // being copied into the message.
 411   if (!value || value->blob_info.empty()) {
 412     dispatcher_host_->Send(
 413         new IndexedDBMsg_CallbacksSuccessCursorContinue(*params));
 414   } else {
 415     IndexedDBMsg_CallbacksSuccessCursorContinue_Params* p = params.get();
 416     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 417     RegisterBlobsAndSend(
 418         value->blob_info,
 419         base::Bind(CreateBlobsAndSend<
 420                        IndexedDBMsg_CallbacksSuccessCursorContinue_Params,
 421                        IndexedDBMsg_CallbacksSuccessCursorContinue>,
 422                    base::Owned(params.release()),
 423                    dispatcher_host_,
 424                    value->blob_info,
 425                    base::Unretained(&p->blob_or_file_info)));
 426   }
 427   dispatcher_host_ = NULL;
 428 }
 429
 430 void IndexedDBCallbacks::OnSuccessWithPrefetch(
 431     const std::vector<IndexedDBKey>& keys,
 432     const std::vector<IndexedDBKey>& primary_keys,
 433     std::vector<IndexedDBValue>* values) {
 434   DCHECK_EQ(keys.size(), primary_keys.size());
 435   DCHECK_EQ(keys.size(), values->size());
 436
 437   DCHECK(dispatcher_host_.get());
 438
 439   DCHECK_NE(kNoCursor, ipc_cursor_id_);
 440   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 441   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 442   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 443   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 444
 445   std::vector<IndexedDBKey> msgKeys;
 446   std::vector<IndexedDBKey> msgPrimaryKeys;
 447
 448   for (size_t i = 0; i < keys.size(); ++i) {
 449     msgKeys.push_back(keys[i]);
 450     msgPrimaryKeys.push_back(primary_keys[i]);
 451   }
 452
 453   scoped_ptr<IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params> params(
 454       new IndexedDBMsg_CallbacksSuccessCursorPrefetch_Params());
 455   params->ipc_thread_id = ipc_thread_id_;
 456   params->ipc_callbacks_id = ipc_callbacks_id_;
 457   params->ipc_cursor_id = ipc_cursor_id_;
 458   params->keys = msgKeys;
 459   params->primary_keys = msgPrimaryKeys;
 460   std::vector<std::string>& values_bits = params->values;
 461   values_bits.resize(values->size());
 462   std::vector<std::vector<IndexedDBMsg_BlobOrFileInfo> >& values_blob_infos =
 463       params->blob_or_file_infos;
 464   values_blob_infos.resize(values->size());
 465
 466   bool found_blob_info = false;
 467   std::vector<IndexedDBValue>::iterator iter = values->begin();
 468   for (size_t i = 0; iter != values->end(); ++iter, ++i) {
 469     values_bits[i].swap(iter->bits);
 470     if (iter->blob_info.size()) {
 471       found_blob_info = true;
 472       FillInBlobData(iter->blob_info, &values_blob_infos[i]);
 473       for (const auto& blob_iter : iter->blob_info) {
 474         if (!blob_iter.mark_used_callback().is_null())
 475           blob_iter.mark_used_callback().Run();
 476       }
 477     }
 478   }
 479
 480   if (found_blob_info) {
 481     BrowserThread::PostTask(BrowserThread::IO,
 482                             FROM_HERE,
 483                             base::Bind(BlobLookupForCursorPrefetch,
 484                                        base::Owned(params.release()),
 485                                        dispatcher_host_,
 486                                        *values));
 487   } else {
 488     dispatcher_host_->Send(
 489         new IndexedDBMsg_CallbacksSuccessCursorPrefetch(*params.get()));
 490   }
 491   dispatcher_host_ = NULL;
 492 }
 493
 494 void IndexedDBCallbacks::OnSuccess(IndexedDBValue* value,
 495                                    const IndexedDBKey& key,
 496                                    const IndexedDBKeyPath& key_path) {
 497   DCHECK(dispatcher_host_.get());
 498
 499   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 500   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 501   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 502   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 503   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 504
 505   scoped_ptr<IndexedDBMsg_CallbacksSuccessValueWithKey_Params> params(
 506       new IndexedDBMsg_CallbacksSuccessValueWithKey_Params());
 507   params->ipc_thread_id = ipc_thread_id_;
 508   params->ipc_callbacks_id = ipc_callbacks_id_;
 509   params->primary_key = key;
 510   params->key_path = key_path;
 511   if (value && !value->empty())
 512     std::swap(params->value, value->bits);
 513   if (!value || value->blob_info.empty()) {
 514     dispatcher_host_->Send(
 515         new IndexedDBMsg_CallbacksSuccessValueWithKey(*params));
 516   } else {
 517     IndexedDBMsg_CallbacksSuccessValueWithKey_Params* p = params.get();
 518     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 519     RegisterBlobsAndSend(
 520         value->blob_info,
 521         base::Bind(
 522             CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessValueWithKey_Params,
 523                                IndexedDBMsg_CallbacksSuccessValueWithKey>,
 524             base::Owned(params.release()),
 525             dispatcher_host_,
 526             value->blob_info,
 527             base::Unretained(&p->blob_or_file_info)));
 528   }
 529   dispatcher_host_ = NULL;
 530 }
 531
 532 void IndexedDBCallbacks::OnSuccess(IndexedDBValue* value) {
 533   DCHECK(dispatcher_host_.get());
 534   DCHECK(kNoCursor == ipc_cursor_id_ || value == NULL);
 535   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 536   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 537   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 538   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 539
 540   scoped_ptr<IndexedDBMsg_CallbacksSuccessValue_Params> params(
 541       new IndexedDBMsg_CallbacksSuccessValue_Params());
 542   params->ipc_thread_id = ipc_thread_id_;
 543   params->ipc_callbacks_id = ipc_callbacks_id_;
 544   if (value && !value->empty())
 545     std::swap(params->value, value->bits);
 546   if (!value || value->blob_info.empty()) {
 547     dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessValue(*params));
 548   } else {
 549     IndexedDBMsg_CallbacksSuccessValue_Params* p = params.get();
 550     FillInBlobData(value->blob_info, &p->blob_or_file_info);
 551     RegisterBlobsAndSend(
 552         value->blob_info,
 553         base::Bind(CreateBlobsAndSend<IndexedDBMsg_CallbacksSuccessValue_Params,
 554                                       IndexedDBMsg_CallbacksSuccessValue>,
 555                    base::Owned(params.release()),
 556                    dispatcher_host_,
 557                    value->blob_info,
 558                    base::Unretained(&p->blob_or_file_info)));
 559   }
 560   dispatcher_host_ = NULL;
 561 }
 562
 563 void IndexedDBCallbacks::OnSuccess(const IndexedDBKey& value) {
 564   DCHECK(dispatcher_host_.get());
 565
 566   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 567   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 568   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 569   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 570   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 571
 572   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessIndexedDBKey(
 573       ipc_thread_id_, ipc_callbacks_id_, value));
 574   dispatcher_host_ = NULL;
 575 }
 576
 577 void IndexedDBCallbacks::OnSuccess(int64 value) {
 578   DCHECK(dispatcher_host_.get());
 579
 580   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 581   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 582   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 583   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 584   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 585
 586   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessInteger(
 587       ipc_thread_id_, ipc_callbacks_id_, value));
 588   dispatcher_host_ = NULL;
 589 }
 590
 591 void IndexedDBCallbacks::OnSuccess() {
 592   DCHECK(dispatcher_host_.get());
 593
 594   DCHECK_EQ(kNoCursor, ipc_cursor_id_);
 595   DCHECK_EQ(kNoTransaction, host_transaction_id_);
 596   DCHECK_EQ(kNoDatabase, ipc_database_id_);
 597   DCHECK_EQ(kNoDatabaseCallbacks, ipc_database_callbacks_id_);
 598   DCHECK_EQ(blink::WebIDBDataLossNone, data_loss_);
 599
 600   dispatcher_host_->Send(new IndexedDBMsg_CallbacksSuccessUndefined(
 601       ipc_thread_id_, ipc_callbacks_id_));
 602   dispatcher_host_ = NULL;
 603 }
 604
 605 void IndexedDBCallbacks::SetConnectionOpenStartTime(
 606     const base::TimeTicks& start_time) {
 607   connection_open_start_time_ = start_time;
 608 }
 609
 610 }  // namespace content