Mac: Move prefs around in preparation for the content settings window.

Also introduce scaffolding for the actual content settings dialog.

xib changes:
+ Personal stuff
* Move "Clear browsing data" button to under the hood tab
* Move themes stuff up a bit to cover hole left by missing button

+ under the hood:
* Created "Content Settings..." button
* Got rid of cookie settings
* Moved stuff around

+ clear data:
* Added horizontal rule and flash player settings link, linked its action to
  new method.

+ content settings:
* Added mostly empty window that contains "This is not implemented yet" label and a button that shows cookies (since I removed that from the prefs, so that it's still available). This window will be fleshed out very soon (in my next CL).
* The window _is_ set up for l10n

+ bubble xibs:
* Enable "Manage" links now that they open a window

Four screenshots at http://imgur.com/axGiR&78O8g&wgk3p&6oOHj

BUG=34656,34894
TEST="Clear data" button has moved from "Personal Stuff" to "Under the hood" in prefs. There's a "Content Settings" button next to it that opens a mostly empty window. The "Clear data" dialog now has a link to flash's privacy settings (which hang if one has the AdThwart extension installed, heh).

Review URL: http://codereview.chromium.org/650124

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@39588 0039d316-1c4b-4281-b951-d872f2087c98
23 files changed