Break some of the chrome/common dependencies in implementation by moving some paths and constants to the component.

Design doc: https://docs.google.com/document/d/1F76yNZCnPnGzgNXhI-sCFKlXulwx_s_OKTGbJS5NhbA/edit?usp=sharing

BUG=371463

Review URL: https://codereview.chromium.org/334783002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@281744 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 50 insertions, 0 deletions

diff --git a/components/component_updater/component_updater_paths.cc b/components/component_updater/component_updater_paths.cc
new file mode 100644
index 0000000..62f484b
--- /dev/null
+++ b/components/component_updater/component_updater_paths.cc
@@ -0,0 +1,50 @@
+// Copyright 2014 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/component_updater/component_updater_paths.h"
+
+#include "base/lazy_instance.h"
+#include "base/path_service.h"
+
+namespace component_updater {
+
+namespace {
+
+static base::LazyInstance<base::FilePath> g_components_root =
+    LAZY_INSTANCE_INITIALIZER;
+
+}  // namespace
+
+bool PathProvider(int key, base::FilePath* result) {
+  DCHECK(!g_components_root.Get().empty());
+  base::FilePath cur = g_components_root.Get();
+  switch (key) {
+    case DIR_COMPONENT_CLD2:
+      cur = cur.Append(FILE_PATH_LITERAL("CLD"));
+      break;
+    case DIR_RECOVERY_BASE:
+      cur = cur.Append(FILE_PATH_LITERAL("recovery"));
+      break;
+    case DIR_SWIFT_SHADER:
+      cur = cur.Append(FILE_PATH_LITERAL("SwiftShader"));
+      break;
+    default:
+      return false;
+  }
+
+  *result = cur;
+  return true;
+}
+
+// This cannot be done as a static initializer sadly since Visual Studio will
+// eliminate this object file if there is no direct entry point into it.
+void RegisterPathProvider(const base::FilePath& components_root) {
+  DCHECK(g_components_root.Get().empty());
+  DCHECK(!components_root.empty());
+  g_components_root.Get() = components_root;
+
+  PathService::RegisterProvider(PathProvider, PATH_START, PATH_END);
+}
+
+}  // namespace component_updater