Added new fileBrowserPrivate and fileHandler extension APIs

chrome/common/extensions/file_browser_action.cc

+// Copyright (c) 2011 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/common/extensions/file_browser_action.h"
+
+#include "chrome/common/extensions/url_pattern.h"
+#include "googleurl/src/gurl.h"
+
+FileBrowserAction::FileBrowserAction() {
+}
+
+
+FileBrowserAction::~FileBrowserAction() {
+}
+
+void FileBrowserAction::AddPattern(const URLPattern& pattern) {
+  patterns_.push_back(pattern);
+}
+
+void FileBrowserAction::ClearPatterns() {
+  patterns_.clear();
+}
+
+bool FileBrowserAction::ContainsURL(const GURL& url) const {
+  for (PatternList::const_iterator pattern = patterns_.begin();
+       pattern != patterns_.end(); ++pattern) {
+    if (pattern->MatchesUrl(url))
+      return true;
+  }
+  return false;
+}
+
+bool FileBrowserAction::OverlapsWith(const FileBrowserAction& other) const {
+  // Two extension extents overlap if there is any one URL that would match at
+  // least one pattern in each of the extents.
+  for (PatternList::const_iterator i = patterns_.begin();
+       i != patterns_.end(); ++i) {
+    for (PatternList::const_iterator j = other.patterns().begin();
+         j != other.patterns().end(); ++j) {
+      if (i->OverlapsWith(*j))
+        return true;
+    }
+  }
+
+  return false;
+}