Fix margins and spacing of other revision lists

Summary: Fixes spacing in Differential revision detail and Diffusion browse views.

Test Plan:
{F48677}
{F48678}

Reviewers: chad

Reviewed By: chad

CC: aran

Differential Revision: https://secure.phabricator.com/D6359

src/applications/differential/controller/DifferentialRevisionViewController.php

@@ -840,12 +840,11 @@ final class DifferentialRevisionViewController extends DifferentialController {
     $handles = $this->loadViewerHandles($phids);
     $view->setHandles($handles);
 
-    return hsprintf(
+    return array(
-      '%s<div class="differential-panel">%s</div>',
       id(new PhabricatorHeaderView())
-        ->setHeader(pht('Open Revisions Affecting These Files'))
+        ->setHeader(pht('Open Revisions Affecting These Files')),
-        ->render(),
+      $view,
-      $view->render());
+    );
   }
 
   /**

src/applications/diffusion/controller/DiffusionBrowseController.php

@@ -93,13 +93,15 @@ final class DiffusionBrowseController extends DiffusionController {
         $box->setShadow(true);
         $box->appendChild($readme);
         $box->addPadding(PHUI::PADDING_LARGE);
+        $box->addMargin(PHUI::MARGIN_LARGE);
 
-        $panel = new AphrontPanelView();
+        $header = id(new PhabricatorHeaderView())
-        $panel->setHeader(pht('README'));
+          ->setHeader(pht('README'));
-        $panel->setNoBackground();
-        $panel->appendChild($box);
 
-        $content[] = $panel;
+        $content[] = array(
+          $header,
+          $box,
+        );
       }
 
     }

src/applications/diffusion/controller/DiffusionController.php

@@ -133,12 +133,13 @@ abstract class DiffusionController extends PhabricatorController {
     $handles = $this->loadViewerHandles($phids);
     $view->setHandles($handles);
 
-    $panel = new AphrontPanelView();
+    $header = id(new PhabricatorHeaderView())
-    $panel->setId('pending-differential-revisions');
+      ->setHeader(pht('Pending Differential Revisions'));
-    $panel->setHeader('Pending Differential Revisions');
-    $panel->appendChild($view);
 
-    return $panel;
+    return array(
+      $header,
+      $view,
+    );
   }
 
   private function buildCrumbList(array $spec = array()) {