Implement chrome.downloads.erase()

chrome/browser/extensions/api/downloads/downloads_api.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/downloads/downloads_api.h"
 
 #include <algorithm>
 #include <cctype>
 #include <iterator>
 #include <set>
@@ skipping 730 matching lines @@
   scoped_ptr<extensions::api::downloads::Resume::Params> params(
       extensions::api::downloads::Resume::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
   DownloadItem* download_item = GetDownloadIfInProgress(
       profile(), include_incognito(), params->download_id);
   if (download_item != NULL)
     download_item->Cancel(true);
   // |download_item| can be NULL if the download ID was invalid or if the
   // download is not currently active.  Either way, we don't consider it a
   // failure.
-  if (error_.empty())
-    RecordApiFunctions(DOWNLOADS_FUNCTION_CANCEL);
-  return error_.empty();
+  RecordApiFunctions(DOWNLOADS_FUNCTION_CANCEL);
+  return true;
 }
 
 DownloadsEraseFunction::DownloadsEraseFunction() {}
 DownloadsEraseFunction::~DownloadsEraseFunction() {}
 
 bool DownloadsEraseFunction::RunImpl() {
   scoped_ptr<extensions::api::downloads::Erase::Params> params(
       extensions::api::downloads::Erase::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
-  error_ = download_extension_errors::kNotImplementedError;
-  if (error_.empty())
-    RecordApiFunctions(DOWNLOADS_FUNCTION_ERASE);
-  return error_.empty();
+  DownloadManager* manager = NULL;
+  DownloadManager* incognito_manager = NULL;
+  GetManagers(profile(), include_incognito(), &manager, &incognito_manager);
+  DownloadQuery::DownloadVector results;
+  RunDownloadQuery(params->query,
+                   manager,
+                   incognito_manager,
+                   &error_,
+                   &results);
+  if (!error_.empty())
+    return false;
+  base::ListValue* json_results = new base::ListValue();
+  for (DownloadManager::DownloadVector::const_iterator it = results.begin();
+       it != results.end(); ++it) {
+    json_results->Append(base::Value::CreateIntegerValue((*it)->GetId()));
+    (*it)->Remove();
+  }
+  SetResult(json_results);
+  RecordApiFunctions(DOWNLOADS_FUNCTION_ERASE);
+  return true;
 }
 
 DownloadsSetDestinationFunction::DownloadsSetDestinationFunction() {}
 DownloadsSetDestinationFunction::~DownloadsSetDestinationFunction() {}
 
 bool DownloadsSetDestinationFunction::RunImpl() {
   scoped_ptr<extensions::api::downloads::SetDestination::Params> params(
       extensions::api::downloads::SetDestination::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
   error_ = download_extension_errors::kNotImplementedError;
@@ skipping 225 matching lines @@
   if (profile_->HasOffTheRecordProfile() &&
       !profile_->IsOffTheRecord()) {
     DispatchEventInternal(
         profile_->GetOffTheRecordProfile(),
         event_name,
         json_args,
         scoped_ptr<base::ListValue>(args->DeepCopy()));
   }
   DispatchEventInternal(profile_, event_name, json_args, args.Pass());
 }