[android_webview] Hardcode the default text encoding to UTF-8.

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 461 matching lines @@
     'src/third_party/fontconfig/src':
      Var('chromium_git') + '/external/fontconfig.git' + '@' + 'f16c3118e25546c1b749f9823c51827a60aeb5c1',
   },
   'android': {
     'src/third_party/android_protobuf/src':
      Var('chromium_git') + '/external/android_protobuf.git' + '@' + '94f522f907e3f34f70d9e7816b947e62fddbb267',
 
     # Whenever you roll this please also change frameworks/webview in
     # src/android_webview/buildbot/aosp_manifest.xml to point to the same revision.
     'src/third_party/android_webview_glue/src':
-     Var('chromium_git') + '/external/android_webview_glue.git' + '@' + '6ec46f2bd3243d042d9641d7f87863bc20f8c745',
+     Var('chromium_git') + '/external/android_webview_glue.git' + '@' + '7d62eab4ca242beacac4471c002e998ef5c218b8',
 
     'src/third_party/android_tools':
      Var('chromium_git') + '/android_tools.git' + '@' + 'd2b86205ff973a3844020feacb35ca6b1d82efbe',
 
     'src/third_party/apache-mime4j':
      Var('chromium_git') + '/chromium/deps/apache-mime4j.git' + '@' + '28cb1108bff4b6cf0a2e86ff58b3d025934ebe3a',
 
     'src/third_party/findbugs':
      Var('chromium_git') + '/chromium/deps/findbugs.git' + '@' + '7f69fa78a6db6dc31866d09572a0e356e921bf12',
 
@@ skipping 306 matching lines @@
     # corresponding .py files have already been deleted.
     'name': 'remove_stale_pyc_files',
     'pattern': 'src/tools/.*\\.py',
     'action': [
         'python',
         'src/tools/remove_stale_pyc_files.py',
         'src/tools',
     ],
   },
 ]