[Findit] Using flake_analysis_service and add bug number to check flake UI

appengine/findit/templates/flake/flake.html

Index: appengine/findit/templates/flake/flake.html
diff --git a/appengine/findit/templates/flake/flake.html b/appengine/findit/templates/flake/flake.html
index c457eebef7e6a4c31613efed658dfdb371d28e40..f385ffd569397faca0c5dce8f1c281e938414bf2 100644
--- a/appengine/findit/templates/flake/flake.html
+++ b/appengine/findit/templates/flake/flake.html
@@ -41,25 +41,29 @@
     <form method="get" action="/waterfall/check-flake">
       <table>
         <tr>
-          <td style="text-align:right">Master:</td>
+          <td style="text-align:right">Master (required):</td>
           <td><input type="text" name="master_name" id="master_name" size="100" placeholder="chromium.win"/></td>
         </tr>
         <tr>
-          <td style="text-align:right">Builder:</td>
+          <td style="text-align:right">Builder (required):</td>
           <td><input type="text" name="builder_name" id="builder_name" size="100" placeholder="Win7 (32) Tests"/></td>
         </tr>
         <tr>
-          <td style="text-align:right">Build Number:</td>
+          <td style="text-align:right">Build Number (required):</td>
           <td><input type="text" name="build_number" id="build_number" size="100" placeholder="11062"/></td>
         </tr>
         <tr>
-          <td style="text-align:right">Step:</td>
+          <td style="text-align:right">Step (required):</td>
           <td><input type="text" name="step_name" id="step_name" size="100" placeholder="browser_tests on Windows-7-SP1"/></td>
         </tr>
         <tr>
-          <td style="text-align:right">Test:</td>
+          <td style="text-align:right">Test (required):</td>
           <td><input type="text" name="test_name" id="test_name" size="100" placeholder="AppBackgroundPageApiTest.Basic"/></td>
         </tr>
+        <tr>
+          <td style="text-align:right">Bug ID (optional):</td>
+          <td><input type="text" name="bug_id" id="bug_id" size="3" placeholder="123456"/></td>
+        </tr>
       </table>
       <br>
       <input type="submit" value="Find Regression Range">