Add force bypass cache flag for Soft Update / Update algorithm; set i…

…t for .update() method.

spec/service_worker/index.html

@@ -422,7 +422,7 @@ <h1><code>update()</code></h1>
         <li>Let <var>newestWorker</var> be the result of running <a href="#get-newest-worker-algorithm">Get Newest Worker</a> algorithm passing <var>registration</var> as its argument.</li>
         <li>If <var>newestWorker</var> is null, return a <a href="http://www.ecma-international.org/ecma-262/6.0/#sec-promise-objects">promise</a> rejected with an "<code><a href="http://heycam.github.io/webidl/#invalidstateerror">InvalidStateError</a></code>" exception.</li>
         <li>Set <var>registration</var>'s <a href="#dfn-registration-script-url">registering script url</a> to <var>newestWorker</var>'s <a href="#dfn-script-url">script url</a>.</li>
-        <li>Let <var>p</var> be the result of running <a href="#update-algorithm">Update</a> algorithm, or its <a href="#dfn-processing-equivalence">equivalent</a>, passing the <a href="#dfn-service-worker-registration-interface-client">service worker client</a> <var>client</var> and <var>registration</var> as the arguments.</li>
+        <li>Let <var>p</var> be the result of running <a href="#update-algorithm">Update</a> algorithm, or its <a href="#dfn-processing-equivalence">equivalent</a>, passing the <a href="#dfn-service-worker-registration-interface-client">service worker client</a> <var>client</var> and <var>registration</var> as the arguments with <em>force bypass cache flag</em> set.</li>
         <li>Return the result of <a href="http://www.w3.org/2001/tag/doc/promises-guide#transforming-by">transforming</a> <var>p</var> with:
           <ol>
             <li>A fulfillment handler that returns undefined.</li>
@@ -2453,6 +2453,7 @@ <h1>Update</h1>
       <dt>Input</dt>
         <dd><var>client</var>, a <a href="#dfn-service-worker-client">service worker client</a></dd>
         <dd><var>registration</var>, a <a href="#dfn-service-worker-registration">service worker registration</a></dd>
+        <dd><em>force bypass cache flag</em>, an optional flag unset by default</dd>
       <dt>Output</dt>
         <dd><var>promise</var>, a <a href="http://www.ecma-international.org/ecma-262/6.0/#sec-promise-objects">promise</a></dd>
     </dl>
@@ -2493,7 +2494,7 @@ <h1>Update</h1>
           <li>Set <var>newestWorker</var> to the result of running <a href="#get-newest-worker-algorithm">Get Newest Worker</a> algorithm passing <var>registration</var> as the argument.</li>
           <li>If <var>newestWorker</var> is not null and <var>registration</var>'s <a href="#dfn-last-update-time">last update time</a> is not null, then:
             <ol>
-              <li>If the time difference in seconds calculated by the current time minus <var>registration</var>'s <a href="#dfn-last-update-time">last update time</a> is greater than <var>newestWorker</var>'s <a href="#dfn-max-age">max age</a>, set <var>r</var>'s <a href="https://fetch.spec.whatwg.org/#concept-request-cache-mode">cache mode</a> to "<code>reload</code>".</li>
+              <li>If the time difference in seconds calculated by the current time minus <var>registration</var>'s <a href="#dfn-last-update-time">last update time</a> is greater than <var>newestWorker</var>'s <a href="#dfn-max-age">max age</a>, or <em>force bypass cache flag</em> is set, set <var>r</var>'s <a href="https://fetch.spec.whatwg.org/#concept-request-cache-mode">cache mode</a> to "<code>reload</code>".</li>
             </ol>
           </li>
           <li>Let <var>response</var> be the result of running <a href="https://fetch.spec.whatwg.org/#concept-fetch">fetch</a> using <var>r</var>.</li>
@@ -2601,6 +2602,7 @@ <h1>Soft Update</h1>
     <dl>
       <dt>Input</dt>
         <dd><var>registration</var>, a <a href="#dfn-service-worker-registration">service worker registration</a></dd>
+        <dd><em>force bypass cache flag</em>, an optional flag unset by default</dd>
       <dt>Output</dt>
         <dd>None</dd>
     </dl>
@@ -2611,7 +2613,7 @@ <h1>Soft Update</h1>
       <li>Let <var>newestWorker</var> be the result of running <a href="#get-newest-worker-algorithm">Get Newest Worker</a> algorithm passing <var>registration</var> as its argument.</li>
       <li>If <var>newestWorker</var> is null, abort these steps.</li>
       <li>Set <var>registration</var>'s <a href="#dfn-registration-script-url">registering script url</a> to <var>newestWorker</var>'s <a href="#dfn-script-url">script url</a>.</li>
-      <li>Invoke <a href="#update-algorithm">Update</a> algorithm, or its <a href="#dfn-processing-equivalence">equivalent</a>, with <var>client</var>, <var>registration</var> as its argument.</li>
+      <li>Invoke <a href="#update-algorithm">Update</a> algorithm, or its <a href="#dfn-processing-equivalence">equivalent</a>, passing <var>client</var> and <var>registration</var> as its argument with <em>force bypass cache flag</em> set only if its own <em>force bypass cache flag</em> is set.</li>
     </ol>
     </spec-algorithm>
   </spec-section>