Remove dependency on //content from history DownloadDatabase

components/history/core/browser/download_types.cc

Index: components/history/core/browser/download_types.cc
diff --git a/components/history/core/browser/download_types.cc b/components/history/core/browser/download_types.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ccc20186d6373787fd514c05711835ae15ef650a
--- /dev/null
+++ b/components/history/core/browser/download_types.cc
@@ -0,0 +1,129 @@
+// Copyright 2015 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 "components/history/core/browser/download_types.h"
+
+#include <ostream>
+
+#include "base/logging.h"
+#include "components/history/core/browser/download_constants.h"
+
+namespace history {
+
+DownloadState IntToDownloadState(int state) {
+  switch (static_cast<DownloadState>(state)) {
+    case DownloadState::IN_PROGRESS:
+    case DownloadState::COMPLETE:
+    case DownloadState::CANCELLED:
+    case DownloadState::INTERRUPTED:
+      return static_cast<DownloadState>(state);
+
+    case DownloadState::INVALID:
+    case DownloadState::BUG_140687:
+      NOTREACHED();
+      return DownloadState::INVALID;
+  }
+  NOTREACHED();
+  return DownloadState::INVALID;
+}
+
+int DownloadStateToInt(DownloadState state) {
+  DCHECK_NE(state, DownloadState::INVALID);
+  return static_cast<int>(state);
+}
+
+std::ostream& operator<<(std::ostream& stream, DownloadState state) {
+  switch (state) {
+    case DownloadState::INVALID:
+      return stream << "history::DownloadState::COMPLETE";
+    case DownloadState::IN_PROGRESS:
+      return stream << "history::DownloadState::IN_PROGRESS";
+    case DownloadState::COMPLETE:
+      return stream << "history::DownloadState::COMPLETE";
+    case DownloadState::CANCELLED:
+      return stream << "history::DownloadState::CANCELLED";
+    case DownloadState::BUG_140687:
+      return stream << "history::DownloadState::BUG_140687";
+    case DownloadState::INTERRUPTED:
+      return stream << "history::DownloadState::INTERRUPTED";
+  }
+  NOTREACHED();
+  return stream;
+}
+
+DownloadDangerType IntToDownloadDangerType(int danger_type) {
+  switch (static_cast<DownloadDangerType>(danger_type)) {
+    case DownloadDangerType::NOT_DANGEROUS:
+    case DownloadDangerType::DANGEROUS_FILE:
+    case DownloadDangerType::DANGEROUS_URL:
+    case DownloadDangerType::DANGEROUS_CONTENT:
+    case DownloadDangerType::MAYBE_DANGEROUS_CONTENT:
+    case DownloadDangerType::UNCOMMON_CONTENT:
+    case DownloadDangerType::USER_VALIDATED:
+    case DownloadDangerType::DANGEROUS_HOST:
+    case DownloadDangerType::POTENTIALLY_UNWANTED:
+      return static_cast<DownloadDangerType>(danger_type);
+
+    case DownloadDangerType::INVALID:
+      NOTREACHED();
+      return DownloadDangerType::INVALID;
+  }
+  NOTREACHED();
+  return DownloadDangerType::INVALID;
+}
+
+int DownloadDangerTypeToInt(DownloadDangerType danger_type) {
+  DCHECK_NE(danger_type, DownloadDangerType::INVALID);
+  return static_cast<int>(danger_type);
+}
+
+std::ostream& operator<<(std::ostream& stream, DownloadDangerType danger_type) {
+  switch (danger_type) {
+    case DownloadDangerType::INVALID:
+      return stream << "history::DownloadDangerType::INVALID";
+    case DownloadDangerType::NOT_DANGEROUS:
+      return stream << "history::DownloadDangerType::NOT_DANGEROUS";
+    case DownloadDangerType::DANGEROUS_FILE:
+      return stream << "history::DownloadDangerType::DANGEROUS_FILE";
+    case DownloadDangerType::DANGEROUS_URL:
+      return stream << "history::DownloadDangerType::DANGEROUS_URL";
+    case DownloadDangerType::DANGEROUS_CONTENT:
+      return stream << "history::DownloadDangerType::DANGEROUS_CONTENT";
+    case DownloadDangerType::MAYBE_DANGEROUS_CONTENT:
+      return stream << "history::DownloadDangerType::MAYBE_DANGEROUS_CONTENT";
+    case DownloadDangerType::UNCOMMON_CONTENT:
+      return stream << "history::DownloadDangerType::UNCOMMON_CONTENT";
+    case DownloadDangerType::USER_VALIDATED:
+      return stream << "history::DownloadDangerType::USER_VALIDATED";
+    case DownloadDangerType::DANGEROUS_HOST:
+      return stream << "history::DownloadDangerType::DANGEROUS_HOST";
+    case DownloadDangerType::POTENTIALLY_UNWANTED:
+      return stream << "history::DownloadDangerType::POTENTIALLY_UNWANTED";
+  }
+  NOTREACHED();
+  return stream;
+}
+
+DownloadInterruptReason IntToDownloadInterruptReason(int interrupt_reason) {
+  return static_cast<DownloadInterruptReason>(interrupt_reason);
+}
+
+int DownloadInterruptReasonToInt(DownloadInterruptReason interrupt_reason) {
+  return static_cast<int>(interrupt_reason);
+}
+
+const DownloadId kInvalidDownloadId = 0;
+
+DownloadId IntToDownloadId(int64_t id) {
+  DCHECK_GE(id, static_cast<int64_t>(0));
+  DCHECK_NE(id, static_cast<int64_t>(kInvalidDownloadId));
+  return static_cast<DownloadId>(id);
+}
+
+int64_t DownloadIdToInt(DownloadId id) {
+  DCHECK_NE(id, kInvalidDownloadId);
+  return static_cast<int64_t>(id);
+}
+
+}  // namespace history