Get mojo_shell building inside chromium checkout.

This brings in mojo_shell and the necessary services to make html_viewer work.

This is copied from the Mojo repo at 272fbba5887d66fc0111e2ab44c1edf67b7f23e0.

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1049993002

Cr-Commit-Position: refs/heads/master@{#323528}

1 files changed, 72 insertions, 0 deletions

diff --git a/mojo/shell/filename_util.cc b/mojo/shell/filename_util.cc
new file mode 100644
index 0000000..073bdda
--- /dev/null
+++ b/mojo/shell/filename_util.cc
@@ -0,0 +1,72 @@
+// 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 "mojo/shell/filename_util.h"
+
+#include "base/files/file_path.h"
+#include "base/path_service.h"
+#include "base/strings/string_util.h"
+#include "url/gurl.h"
+#include "url/url_canon_internal.h"
+#include "url/url_util.h"
+
+namespace mojo {
+namespace shell {
+
+// Prefix to prepend to get a file URL.
+static const base::FilePath::CharType kFileURLPrefix[] =
+    FILE_PATH_LITERAL("file://");
+
+GURL FilePathToFileURL(const base::FilePath& path) {
+  // Produce a URL like "file:///C:/foo" for a regular file, or
+  // "file://///server/path" for UNC. The URL canonicalizer will fix up the
+  // latter case to be the canonical UNC form: "file://server/path"
+  base::FilePath::StringType url_string(kFileURLPrefix);
+  if (!path.IsAbsolute()) {
+    base::FilePath current_dir;
+    PathService::Get(base::DIR_CURRENT, &current_dir);
+    url_string.append(current_dir.value());
+    url_string.push_back(base::FilePath::kSeparators[0]);
+  }
+  url_string.append(path.value());
+
+  // Now do replacement of some characters. Since we assume the input is a
+  // literal filename, anything the URL parser might consider special should
+  // be escaped here.
+
+  // This must be the first substitution since others will introduce percents as
+  // the escape character
+  ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("%"),
+                               FILE_PATH_LITERAL("%25"));
+
+  // A semicolon is supposed to be some kind of separator according to RFC 2396.
+  ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL(";"),
+                               FILE_PATH_LITERAL("%3B"));
+
+  ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("#"),
+                               FILE_PATH_LITERAL("%23"));
+
+  ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("?"),
+                               FILE_PATH_LITERAL("%3F"));
+
+#if defined(OS_POSIX)
+  ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("\\"),
+                               FILE_PATH_LITERAL("%5C"));
+#endif
+
+  return GURL(url_string);
+}
+
+GURL AddTrailingSlashIfNeeded(const GURL& url) {
+  if (!url.has_path() || *url.path().rbegin() == '/')
+    return url;
+
+  std::string path(url.path() + '/');
+  GURL::Replacements replacements;
+  replacements.SetPathStr(path);
+  return url.ReplaceComponents(replacements);
+}
+
+}  // namespace shell
+}  // namespace mojo