diff --git a/extensions/chromium/pdfHandler-vcros.js b/extensions/chromium/pdfHandler-vcros.js
index 4fb7b3614..839ecb1bc 100644
--- a/extensions/chromium/pdfHandler-vcros.js
+++ b/extensions/chromium/pdfHandler-vcros.js
@@ -18,78 +18,77 @@ limitations under the License.
 /* globals chrome, getViewerURL */
 
 (function() {
-'use strict';
+  'use strict';
 
-if (!chrome.fileBrowserHandler) {
-  // Not on Chromium OS, bail out
-  return;
-}
-chrome.fileBrowserHandler.onExecute.addListener(onExecuteFileBrowserHandler);
-
-/**
- * Invoked when "Open with PDF Viewer" is chosen in the File browser.
- *
- * @param {String} id      File browser action ID as specified in manifest.json
- * @param {Object} details Object of type FileHandlerExecuteEventDetails
- */
-function onExecuteFileBrowserHandler(id, details) {
-  if (id !== 'open-as-pdf') {
+  if (!chrome.fileBrowserHandler) {
+    // Not on Chromium OS, bail out
     return;
   }
-  var fileEntries = details.entries;
-  // "tab_id" is the currently documented format, but it is inconsistent with
-  // the other Chrome APIs that use "tabId" (http://crbug.com/179767)
-  var tabId = details.tab_id || details.tabId;
-  if (tabId > 0) {
-    chrome.tabs.get(tabId, function(tab) {
-      openViewer(tab && tab.windowId, fileEntries);
-    });
-  } else {
-    // Re-use existing window, if available.
-    chrome.windows.getLastFocused(function(chromeWindow) {
-      var windowId = chromeWindow && chromeWindow.id;
-      if (windowId) {
-        chrome.windows.update(windowId, { focused: true });
-      }
-      openViewer(windowId, fileEntries);
-    });
-  }
-}
+  chrome.fileBrowserHandler.onExecute.addListener(onExecuteFileBrowserHandler);
 
-/**
- * Open the PDF Viewer for the given list of PDF files.
- *
- * @param {number} windowId
- * @param {Array} fileEntries List of Entry objects (HTML5 FileSystem API)
- */
-function openViewer(windowId, fileEntries) {
-  if (!fileEntries.length) {
-    return;
+  /**
+   * Invoked when "Open with PDF Viewer" is chosen in the File browser.
+   *
+   * @param {String} id      File browser action ID as specified in manifest.json
+   * @param {Object} details Object of type FileHandlerExecuteEventDetails
+   */
+  function onExecuteFileBrowserHandler(id, details) {
+    if (id !== 'open-as-pdf') {
+      return;
+    }
+    var fileEntries = details.entries;
+    // "tab_id" is the currently documented format, but it is inconsistent with
+    // the other Chrome APIs that use "tabId" (http://crbug.com/179767)
+    var tabId = details.tab_id || details.tabId;
+    if (tabId > 0) {
+      chrome.tabs.get(tabId, function(tab) {
+        openViewer(tab && tab.windowId, fileEntries);
+      });
+    } else {
+      // Re-use existing window, if available.
+      chrome.windows.getLastFocused(function(chromeWindow) {
+        var windowId = chromeWindow && chromeWindow.id;
+        if (windowId) {
+          chrome.windows.update(windowId, { focused: true });
+        }
+        openViewer(windowId, fileEntries);
+      });
+    }
   }
-  var fileEntry = fileEntries.shift();
-  var url = fileEntry.toURL();
-  // Use drive: alias to get shorter (more human-readable) URLs.
-  url = url.replace(/^filesystem:chrome-extension:\/\/[a-p]{32}\/external\//,
-      'drive:');
-  url = getViewerURL(url);
 
-  if (windowId) {
-    chrome.tabs.create({
-      windowId: windowId,
-      active: true,
-      url: url
-    }, function() {
-      openViewer(windowId, fileEntries);
-    });
-  } else {
-    chrome.windows.create({
-      type: 'normal',
-      focused: true,
-      url: url
-    }, function(chromeWindow) {
-      openViewer(chromeWindow.id, fileEntries);
-    });
+  /**
+   * Open the PDF Viewer for the given list of PDF files.
+   *
+   * @param {number} windowId
+   * @param {Array} fileEntries List of Entry objects (HTML5 FileSystem API)
+   */
+  function openViewer(windowId, fileEntries) {
+    if (!fileEntries.length) {
+      return;
+    }
+    var fileEntry = fileEntries.shift();
+    var url = fileEntry.toURL();
+    // Use drive: alias to get shorter (more human-readable) URLs.
+    url = url.replace(/^filesystem:chrome-extension:\/\/[a-p]{32}\/external\//,
+                      'drive:');
+    url = getViewerURL(url);
+
+    if (windowId) {
+      chrome.tabs.create({
+        windowId: windowId,
+        active: true,
+        url: url
+      }, function() {
+        openViewer(windowId, fileEntries);
+      });
+    } else {
+      chrome.windows.create({
+        type: 'normal',
+        focused: true,
+        url: url
+      }, function(chromeWindow) {
+        openViewer(chromeWindow.id, fileEntries);
+      });
+    }
   }
-}
-
 })();