Remove //net (except for Android test stuff) and sdch

net/base/platform_mime_util_linux.cc

-// Copyright (c) 2012 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 "net/base/platform_mime_util.h"
-
-#include <string>
-
-#include "base/logging.h"
-#include "build/build_config.h"
-
-#if defined(OS_ANDROID)
-#include "net/android/network_library.h"
-#else
-#include "base/nix/mime_util_xdg.h"
-#endif
-
-namespace net {
-
-#if defined(OS_ANDROID)
-bool PlatformMimeUtil::GetPlatformMimeTypeFromExtension(
-    const base::FilePath::StringType& ext, std::string* result) const {
-  return android::GetMimeTypeFromExtension(ext, result);
-}
-#else
-bool PlatformMimeUtil::GetPlatformMimeTypeFromExtension(
-    const base::FilePath::StringType& ext, std::string* result) const {
-  // TODO(thestig): This is a temporary hack until we can fix this
-  // properly in test shell / webkit.
-  // We have to play dumb and not return application/x-perl here
-  // to make the reload-subframe-object layout test happy.
-  if (ext == "pl")
-    return false;
-
-  base::FilePath dummy_path("foo." + ext);
-  std::string out = base::nix::GetFileMimeType(dummy_path);
-
-  // GetFileMimeType likes to return application/octet-stream
-  // for everything it doesn't know - ignore that.
-  if (out == "application/octet-stream" || out.empty())
-    return false;
-
-  // GetFileMimeType returns image/x-ico because that's what's in the XDG
-  // mime database. That database is the merger of the Gnome and KDE mime
-  // databases. Apparently someone working on KDE in 2001 decided .ico
-  // resolves to image/x-ico, whereas the rest of the world uses image/x-icon.
-  // FWIW, image/vnd.microsoft.icon is the official IANA assignment.
-  if (out == "image/x-ico")
-    out = "image/x-icon";
-
-  *result = out;
-  return true;
-}
-
-#endif  // defined(OS_ANDROID)
-
-struct MimeToExt {
-  const char* mime_type;
-  const char* ext;
-};
-
-const struct MimeToExt mime_type_ext_map[] = {
-  {"application/pdf", "pdf"},
-  {"application/x-tar", "tar"},
-  {"application/zip", "zip"},
-  {"audio/mpeg", "mp3"},
-  {"image/gif", "gif"},
-  {"image/jpeg", "jpg"},
-  {"image/png", "png"},
-  {"text/html", "html"},
-  {"video/mp4", "mp4"},
-  {"video/mpeg", "mpg"},
-  {"text/plain", "txt"},
-  {"text/x-sh", "sh"},
-};
-
-bool PlatformMimeUtil::GetPreferredExtensionForMimeType(
-    const std::string& mime_type, base::FilePath::StringType* ext) const {
-
-  for (size_t x = 0;
-       x < (sizeof(mime_type_ext_map) / sizeof(MimeToExt));
-       x++) {
-    if (mime_type_ext_map[x].mime_type == mime_type) {
-      *ext = mime_type_ext_map[x].ext;
-      return true;
-    }
-  }
-
-  // TODO(dhg): Fix this the right way by implementing what's said below.
-  // Unlike GetPlatformMimeTypeFromExtension, this method doesn't have a
-  // default list that it uses, but for now we are also returning false since
-  // this doesn't really matter as much under Linux.
-  //
-  // If we wanted to do this properly, we would read the mime.cache file which
-  // has a section where they assign a glob (*.gif) to a mimetype
-  // (image/gif). We look up the "heaviest" glob for a certain mime type and
-  // then then try to chop off "*.".
-
-  return false;
-}
-
-void PlatformMimeUtil::GetPlatformExtensionsForMimeType(
-    const std::string& mime_type,
-    base::hash_set<base::FilePath::StringType>* extensions) const {
-  base::FilePath::StringType ext;
-  if (GetPreferredExtensionForMimeType(mime_type, &ext))
-    extensions->insert(ext);
-}
-
-}  // namespace net