Move manifest_handler_helpers to //extensions

BUG=359836

Review URL: https://codereview.chromium.org/228603004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262464 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 64 insertions, 0 deletions

diff --git a/extensions/common/manifest_handler_helpers.cc b/extensions/common/manifest_handler_helpers.cc
new file mode 100644
index 0000000..d3dfea6
--- /dev/null
+++ b/extensions/common/manifest_handler_helpers.cc
@@ -0,0 +1,64 @@
+// 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 "extensions/common/manifest_handler_helpers.h"
+
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/values.h"
+#include "extensions/common/error_utils.h"
+#include "extensions/common/extension.h"
+#include "extensions/common/extension_icon_set.h"
+#include "extensions/common/manifest_constants.h"
+
+
+namespace extensions {
+
+namespace errors = manifest_errors;
+
+namespace manifest_handler_helpers {
+
+bool NormalizeAndValidatePath(std::string* path) {
+  size_t first_non_slash = path->find_first_not_of('/');
+  if (first_non_slash == std::string::npos) {
+    *path = "";
+    return false;
+  }
+
+  *path = path->substr(first_non_slash);
+  return true;
+}
+
+bool LoadIconsFromDictionary(const base::DictionaryValue* icons_value,
+                             const int* icon_sizes,
+                             size_t num_icon_sizes,
+                             ExtensionIconSet* icons,
+                             base::string16* error) {
+  DCHECK(icons);
+  for (size_t i = 0; i < num_icon_sizes; ++i) {
+    std::string key = base::IntToString(icon_sizes[i]);
+    if (icons_value->HasKey(key)) {
+      std::string icon_path;
+      if (!icons_value->GetString(key, &icon_path)) {
+        *error = ErrorUtils::FormatErrorMessageUTF16(
+            errors::kInvalidIconPath, key);
+        return false;
+      }
+
+      if (!NormalizeAndValidatePath(&icon_path)) {
+        *error = ErrorUtils::FormatErrorMessageUTF16(
+            errors::kInvalidIconPath, key);
+        return false;
+      }
+
+      icons->Add(icon_sizes[i], icon_path);
+    }
+  }
+  return true;
+}
+
+}  // namespace manifest_handler_helpers
+
+}  // namespace extensions