Update a link and add redirect to webview docs.

Old location was apps/webview.html; redirect it to apps/tag/webview.html.

BUG=341270

Review URL: https://codereview.chromium.org/136123011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249355 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249355
Translate: Bug fix: remove a region code of a language code when initializing the bubble

Called TranslateManager::GetLanguage at GetTranslateLanguages of
translate_bubble_view.cc. Apparently, TranslateManager::GetLanguage is
used not only for the chrome locale but also for any language codes, so
I renamed the argument name.

BUG=336732
TEST=manual

Review URL: https://codereview.chromium.org/141763005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249356 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249356