Valgrind: Suppress an occasional leak inside net::URLFetcherCore::StartURLRequestWhenAppropriate. Remove a similar, but obsolete suppression.

BUG=80663,331925
NOTRY=true
TBR=groby@chromium.org

Review URL: https://codereview.chromium.org/119903005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243192 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243192
[Mac] Account management view for the new avatar bubble.
This also adds the inline sign-in views to the bubble.

Screenshot: https://drive.google.com/file/d/0B1B1Up4p2NRMbGRkQ3FpWFZweVU/edit?usp=sharing
BUG=324036
TEST=Start Chrome with --new-profile-management and --enable-inline-sign-in flags. 
For a local profile, click on the avatar button and press the "Sign in to 
Chromium" link from the avatar bubble. This should display an inline sign-in
view inside the bubble. For a signed in profile, press the "Manage accounts" 
link. This should show you the email accounts linked to this profile. Clicking 
the big "add account" button should show you the inline sign-in view 
embedded in the bubble. Once an email has been added, the account 
management view should refresh and display this new email account.

Review URL: https://codereview.chromium.org/114143002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243193 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243193
Reenable overlay scrollbars

BUG=326635
TEST=Existing
R=jdduke

Review URL: https://codereview.chromium.org/124283003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243194 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243194