Move <style> into <template> for Polymer 2 compatibility

Bug: Issue 11107
Change-Id: I31738790027310456c0f2d4333d7063d7f738ec9
diff --git a/gr-checks/gr-checks-change-list-header-view.html b/gr-checks/gr-checks-change-list-header-view.html
index 9ddc13a..efdf442 100644
--- a/gr-checks/gr-checks-change-list-header-view.html
+++ b/gr-checks/gr-checks-change-list-header-view.html
@@ -1,11 +1,11 @@
 <dom-module id="gr-checks-change-list-header-view">
-  <style>
-    :host {
-      display: table-cell;
-      padding: 0 3px;
-    }
-  </style>
   <template>
+    <style>
+      :host {
+        display: table-cell;
+        padding: 0 3px;
+      }
+    </style>
     Checks
   </template>
 
diff --git a/gr-checks/gr-checks-change-list-item-cell-view.html b/gr-checks/gr-checks-change-list-item-cell-view.html
index 61af378..8536a66 100644
--- a/gr-checks/gr-checks-change-list-item-cell-view.html
+++ b/gr-checks/gr-checks-change-list-item-cell-view.html
@@ -1,12 +1,12 @@
 <dom-module id="gr-checks-change-list-item-cell-view">
-  <style>
-    :host {
-      display: inline-block;
-      text-align: center;
-      width: 100%;
-    }
-  </style>
   <template>
+    <style>
+      :host {
+        display: inline-block;
+        text-align: center;
+        width: 100%;
+      }
+    </style>
   </template>
 
   <script src="gr-checks-change-list-item-cell-view.js"></script>