Add back buttons and load new 'pages' by calling javascript.

build/android/pylib/results/presentation/template/main.html

Index: build/android/pylib/results/presentation/template/main.html
diff --git a/build/android/pylib/results/presentation/template/main.html b/build/android/pylib/results/presentation/template/main.html
index 60e78adf3cc9d010cd9c29a412f4f6bc4550795a..b21d4c9b1107a008e0b63a164bc8c9390afe6cf9 100644
--- a/build/android/pylib/results/presentation/template/main.html
+++ b/build/android/pylib/results/presentation/template/main.html
@@ -52,7 +52,7 @@
     <a onclick="reportIssues();"><b>Feedback</b></a>
   </body>
   <script>
-    loadPage();
+    showSuiteTableOnlyWithReplaceState();
     // Enable sorting for each column of tables.
     Array.prototype.slice.call(document.getElementsByTagName('th'))
         .forEach(function(head) {
@@ -61,5 +61,6 @@
                 function() { sortByColumn(head); });
         }
     );
+    setBrowserBackButtonLogic();
   </script>
 </html>