libcef: Update due to underlying chromium changes.

- Add the printing project and delete duplicated files from the CEF printing directory.
- Add media-related projects and support for <video> and <image> tags.
- Use WebKit::WebHTTPBody instead of net::UploadData for web requests.
- Numerous changes due to continued cleanup of webkit/glue and webkit/api/public.
- Use a separate BrowserWebViewDelegate instance for popup windows.

libcef:
- Add support for printing to file.
- Use WebFrame::GetFullPageHtml() instead of webkit_glue::GetDocumentString().
- Parse extra header values in RequestProxy for passing to CefHandler::HandleBeforeResourceLoad().
- Add urlmon.lib dependency in libcef.vsprops.

tools:
- Add the patch application tool (patcher.py).

patch:
- New project for applying required patches to the Chromium source tree (issue #47).
- Add webkit_glue.patch for http://codereview.chromium.org/160004

cefclient:
- Add new test for submitting and handling requests.
- Don't change navigation button state for popup windows.
- Fix problem on Vista where the string returned by EM_GETLINE is not NULL-terminated.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@32 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tools/file_util.py

@@ -0,0 +1,44 @@
+# Copyright (c) 2009 The Chromium Embedded Framework Authors. All rights
+# reserved. Use of this source code is governed by a BSD-style license that
+# can be found in the LICENSE file.
+
+import os
+import shutil
+import sys
+import time
+
+def read_file(name, normalize = True):
+    """ Function for reading a file. """
+    try:
+        f = open(name, 'r')
+        # read the data
+        data = f.read()
+        if normalize:
+            # normalize line endings
+            data = data.replace("\r\n", "\n")
+        return data
+    except IOError, (errno, strerror):
+        sys.stderr.write('Failed to read file '+filename+': '+strerror)
+        raise
+    else:
+        f.close()
+ 
+def write_file(name, data):
+    """ Function for writing a file. """
+    try:
+        f = open(name, 'w')
+        # write the data
+        f.write(data)
+    except IOError, (errno, strerror):
+       sys.stderr.write('Failed to write file '+name+': '+strerror)
+       raise
+    else:
+        f.close()
+        
+def file_exists(name):
+    """ Returns true if the file currently exists. """
+    return os.path.exists(name)
+
+def backup_file(name):
+    """ Renames the file to a name that includes the current time stamp. """
+    shutil.move(name, name+'.'+time.strftime('%Y-%m-%d-%H-%M-%S'))