Minor string changes:
Minor string changes:

1. Change Clear All to Clear all (Sentence case for all labels)
2. Remove 'uncompleted' from the downloads in progress confirm,
   and change 'remove' to just 'cancel' in all cases.

R= glen
BUG= 10954
TEST= Ctrl+J and check that the label in the upper right is 'Clear all' 
with a lower-case a.

TEST= Close the browser with a download in progress and verify that the prompt
is 

   "You have 1 download(s) in progress. If you close Google Chrome now, these
    downloads will be canceled."

and the cancel button is

   "Close and cancel downloads"

Review URL: http://codereview.chromium.org/92114

git-svn-id: http://src.chromium.org/svn/trunk/src@14410 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 76463cadf0721f6910be4bea48e5a668aa9ba795
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