Convert inline profile image transforms to new transformations

Summary:
Ref T7707. Fixes T7879. Fixes T4406. When creating profile images:

  - Use the new transforms;
  - mark them as "profile" images so they're forced to the most-open policies.

Test Plan:
  - Set restrictive default file policies.
  - Changed profile picture, project pictures, etc. Verified they were visible to logged-out users.
  - Registered via OAuth.
  - Updated a Conpherence thread image.
  - Browsed around looking for profile images, fixed sizing on everything I could find.

Reviewers: chad, btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7879, T7707, T4406

Differential Revision: https://secure.phabricator.com/D12821

src/applications/files/controller/PhabricatorFileComposeController.php

@@ -58,7 +58,7 @@ final class PhabricatorFileComposeController
       }
 
       $root = dirname(phutil_get_library_root('phabricator'));
-      $icon_file = $root.'/resources/sprite/projects_1x/'.$icon.'.png';
+      $icon_file = $root.'/resources/sprite/projects_2x/'.$icon.'.png';
       $icon_data = Filesystem::readFile($icon_file);
 
 
@@ -68,6 +68,7 @@ final class PhabricatorFileComposeController
         $data,
         array(
           'name' => 'project.png',
+          'profile' => true,
           'canCDN' => true,
         ));
 
@@ -325,10 +326,10 @@ final class PhabricatorFileComposeController
     $color_string = idx($map, $color, '#ff00ff');
     $color_const = hexdec(trim($color_string, '#'));
 
-    $canvas = imagecreatetruecolor(50, 50);
+    $canvas = imagecreatetruecolor(100, 100);
     imagefill($canvas, 0, 0, $color_const);
 
-    imagecopy($canvas, $icon_img, 0, 0, 0, 0, 50, 50);
+    imagecopy($canvas, $icon_img, 0, 0, 0, 0, 100, 100);
 
     return PhabricatorImageTransformer::saveImageDataInAnyFormat(
       $canvas,