Fixing path to chrome app samples in documentation

chrome/common/extensions/docs/templates/articles/angular_framework.html

 <meta name="doc-family" content="apps">
 <h1>Build Apps with AngularJS</h1>
 <!--Article written by Eric Bidelman-->
 <p>
 This guide gets you started building Chrome Apps
 with the <a href="http://angularjs.org/">AngularJS</a> MVC framework.
 To illustrate Angular in action,
 we'll be referencing an actual app built using the framework,
 the Google Drive Uploader.
-The <a href="https://github.com/GoogleChrome/chrome-app-samples/tree/master/gdrive">source code</a>
+The <a href="https://github.com/GoogleChrome/chrome-app-samples/tree/master/samples/gdrive">source code</a>
 is available on GitHub.
 </p>
 
 <h2 id="first">About the app</h2>
 
 <img src="{{static}}/images/uploader.png"
      width="296"
      height="347"
      style="float: right; padding-left: 5px"
      alt="Google Drive Uploader">
@@ skipping 100 matching lines @@
 
 <h2 id="three">Creating the event page</h2>
 
 <p>
 All Chrome Apps require a background script/page
 to launch the app and respond to system events.
 </p>
 
 <p>
 In its
-<a href="https://github.com/GoogleChrome/chrome-app-samples/blob/master/gdrive/js/background.js">background.js</a> 
+<a href="https://github.com/GoogleChrome/chrome-app-samples/blob/master/gdrive/js/background.js">background.js</a>
 script,
 Drive Uploader opens a 500x600px window to the main page.
 It also specifies a minimum height and width for the window
-so the content doesn't become too crunched: 
+so the content doesn't become too crunched:
 </p>
 
 <pre data-filename="background.js">
 chrome.app.runtime.onLaunched.addListener(function(launchData) {
   chrome.app.window.create('../main.html', {
     id: "GDriveExample",
     bounds: {
       width: 500,
       height: 600
     },
@@ skipping 51 matching lines @@
 
 <p>
 In
 <a href="https://github.com/GoogleChrome/chrome-app-samples/blob/master/gdrive/js/app.js">app.js</a>,
 this button is hooked up to <code>window.close()</code>.
 </p>
 
 <h2 id="four">Designing the app the Angular way</h2>
 
 <p>
-Angular is an MVC framework, so we need to define the app in such a way that a 
+Angular is an MVC framework, so we need to define the app in such a way that a
 model, view, and controller logically fall out of it. Luckily, this is trivial when using Angular.
 </p>
 
 <p>
 The View is the easiest, so let's start there.
 </p>
 
 <h3 id="view">Creating the view</h3>
 
 <p>
 <a href="https://github.com/GoogleChrome/chrome-app-samples/blob/master/gdrive/main.html">main.html</a>
 is the "V" in MVC; where we define HTML templates to render data into.
 In Angular, templates are simple blocks of HTML with some special sauce.
 </p>
 
 <p>
 Ultimately we want to display the user's list of files.
 For that, a simple &lt;ul> list makes sense.
-The Angular bits are highlighted in bold: 
+The Angular bits are highlighted in bold:
 </p>
 
 <pre data-filename="main.html">
 &lt;ul>
   &lt;li <strong>data-ng-repeat="doc in docs"</strong>>
     &lt;img data-ng-src=<strong>"&#123;{doc.icon}&#125;"</strong>> &lt;a href=<strong>"&#123;{doc.alternateLink}&#125;"</strong>><strong>&#123;{doc.title}&#125;</strong>&lt;/a>
 <strong>&#123;{doc.size}&#125;</strong>
     &lt;span class="date"><strong>&#123;{doc.updatedDate}&#125;</strong>&lt;/span>
   &lt;/li>
 &lt;/ul>
@@ skipping 259 matching lines @@
 <p>
 <code>fetchDocs()</code> uses Angular's <code>$http</code> service
 to retrieve the main feed over XHR.
 The oauth access token is included
 in the <code>Authorization</code> header
 along with other custom headers and parameters.
 </p>
 
 <p>
 The <code>successCallback</code> processes the API response and
-creates a new doc object for each entry in the feed. 
+creates a new doc object for each entry in the feed.
 </p>
 
 <p>
 If you run <code>fetchDocs()</code> right now,
 everything works and the list of files shows up:
 </p>
 
 <img src="{{static}}/images/listoffiles.png"
      width="580"
      height="680"
@@ skipping 116 matching lines @@
 
       <strong>// 'https://ssl.gstatic.com/doc_icon_128.png' -> 'doc_icon_128.png'
       doc.iconFilename = doc.icon.substring(doc.icon.lastIndexOf('/') + 1);</strong>
 
       // If file exists, it we'll get back a FileEntry for the filesystem URL.
       // Otherwise, the error callback will fire and we need to XHR it in and
       // write it to the FS.
       <strong>var fsURL = fs.root.toURL() + FOLDERNAME + '/' + doc.iconFilename;
       window.webkitResolveLocalFileSystemURL(fsURL, function(entry) {
         doc.icon = entry.toURL(); // should be === to fsURL, but whatevs.</strong>
-        
+
         $scope.docs.push(doc); // add doc to model.
 
         // Only want to sort and call $apply() when we have all entries.
         if (totalEntries - 1 == i) {
           $scope.docs.sort(Util.sortByDate);
           $scope.$apply(function($scope) {}); // Inform angular that we made changes.
         }
 
       <strong>}, function(e) {
         // Error: file doesn't exist yet. XHR it in and write it to the FS.
-        
+
         $http.get(doc.icon, {responseType: 'blob'}).success(function(blob) {
           console.log('Fetched icon via XHR');
 
           blob.name = doc.iconFilename; // Add icon filename to blob.
 
           writeFile(blob); // Write is async, but that's ok.
 
           doc.icon = window.URL.createObjectURL(blob);
 
           $scope.docs.push(doc);
@@ skipping 70 matching lines @@
 and have them uploaded to Google Drive.
 </p>
 
 <p>
 Simply adding this to the gdocs service does the job:
 </p>
 
 <pre data-filename="app.js">
 gDriveApp.factory('gdocs', function() {
   var gdocs = new GDocs();
-  
+
   var dnd = new DnDFileController('body', function(files) {
     var $scope = angular.element(this).scope();
     Util.toArray(files).forEach(function(file, i) {
       gdocs.upload(file, function() {
         $scope.fetchDocs();
       });
     });
   });
 
   return gdocs;
 });
 </pre>
 
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