Mac: Fix Text Encoding menu by partly reverting r29315.
Mac: Fix Text Encoding menu by partly reverting r29315.

(r29315 was http://codereview.chromium.org/273063.) r29315 incorrectly changed the code for the Text Encoding menu entry to IDC_ENCODING_AUTO_DETECT (from IDC_ENCODING_MENU), which caused it to be incorrectly recognized as the auto detect menu item....

BUG=25397
TEST=Check the View->Text Encoding menu under various circumstances.

Review URL: http://codereview.chromium.org/292047

git-svn-id: http://src.chromium.org/svn/trunk/src@29652 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 52c6528a3964d01df543154becf746359fdcf0b8
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser