Update to Chromium revision cb947c01 (#352221)

- Implement CefRequestHandler::OnBeforeBrowse using NavigationThrottle
  instead of ResourceThrottle (see http://crbug.com/537634). The CefRequest
  object passed to OnBeforeBrowse will no longer have an associated request
  identifier.
- Mac: Remove additional helper apps which are no longer required (see
  http://crbug.com/520680)
- Remove the UR_FLAG_REPORT_RAW_HEADERS flag which is no longer supported (see
  http://crbug.com/517114)
- Remove the CefBrowserSettings.java parameter. Java is an NPAPI plugin and
  NPAPI plugins are no longer supported (see http://crbug.com/470301#c11)
- Add CefFormatUrlForSecurityDisplay function in cef_parser.h
- Fix crash when passing `--disable-extensions` command-line flag (issue #1721)
- Linux: Fix NSS handler loading (issue #1727)

patch/patch.cfg

@@ -14,8 +14,6 @@ patches = [
   {
     # Fix Xcode 4 build on OS X Lion.
     # http://codereview.chromium.org/8086022/
-    # Fix incorrect detection of DEPOT_TOOLS_WIN_TOOLCHAIN=0 on Windows.
-    # https://code.google.com/p/chromium/issues/detail?id=523154
     'name': 'build',
     'path': '../build/',
   },
@@ -202,13 +200,6 @@ patches = [
     'name': 'supports_user_data_1710',
     'path': '../base/',
   },
-  {
-    # Fix warning treated as error with Widevine CDM 64-bit Windows build.
-    # https://bitbucket.org/chromiumembedded/cef/issues/1631/
-    # https://codereview.chromium.org/1326413003
-    'name': 'widevine_cdm_1631',
-    'path': '../media/cdm/stub/',
-  },
   {
     # Fix background color on Mac.
     # https://codereview.chromium.org/1070383005 (reverted)