PDF: Use KeyboardEvent.code instead of keyCode.

chrome/browser/resources/pdf/pdf.js

Index: chrome/browser/resources/pdf/pdf.js
diff --git a/chrome/browser/resources/pdf/pdf.js b/chrome/browser/resources/pdf/pdf.js
index 2c802e687f637ce4b239f5572ef5dbb4b119b68d..df2e868a99e798ef84d3de1c55b5c4e83a697fb6 100644
--- a/chrome/browser/resources/pdf/pdf.js
+++ b/chrome/browser/resources/pdf/pdf.js
@@ -284,29 +284,29 @@ PDFViewer.prototype = {
       }
     }.bind(this);
 
-    switch (e.keyCode) {
-      case 9:  // Tab key.
+    switch (e.code) {
+      case 'Tab':
         this.toolbarManager_.showToolbarsForKeyboardNavigation();
         return;
-      case 27:  // Escape key.
+      case 'Escape':
         if (!this.isPrintPreview_) {
           this.toolbarManager_.hideSingleToolbarLayer();
           return;
         }
         break;  // Ensure escape falls through to the print-preview handler.
-      case 32:  // Space key.
+      case 'Space':
         if (e.shiftKey)
           pageUpHandler();
         else
           pageDownHandler();
         return;
-      case 33:  // Page up key.
+      case 'PageUp':
         pageUpHandler();
         return;
-      case 34:  // Page down key.
+      case 'PageDown':
         pageDownHandler();
         return;
-      case 37:  // Left arrow key.
+      case 'ArrowLeft':
         if (!(e.altKey || e.ctrlKey || e.metaKey || e.shiftKey)) {
           // Go to the previous page if there are no horizontal scrollbars and
           // no form field is focused.
@@ -321,13 +321,13 @@ PDFViewer.prototype = {
           }
         }
         return;
-      case 38:  // Up arrow key.
+      case 'ArrowUp':
         if (fromScriptingAPI) {
           position.y -= Viewport.SCROLL_INCREMENT;
           this.viewport.position = position;
         }
         return;
-      case 39:  // Right arrow key.
+      case 'ArrowRight':
         if (!(e.altKey || e.ctrlKey || e.metaKey || e.shiftKey)) {
           // Go to the next page if there are no horizontal scrollbars and no
           // form field is focused.
@@ -342,13 +342,13 @@ PDFViewer.prototype = {
           }
         }
         return;
-      case 40:  // Down arrow key.
+      case 'ArrowDown':
         if (fromScriptingAPI) {
           position.y += Viewport.SCROLL_INCREMENT;
           this.viewport.position = position;
         }
         return;
-      case 65:  // 'a' key.
+      case 'KeyA':
         if (e.ctrlKey || e.metaKey) {
           this.plugin_.postMessage({
             type: 'selectAll'
@@ -357,21 +357,21 @@ PDFViewer.prototype = {
           e.preventDefault();
         }
         return;
-      case 71: // 'g' key.
+      case 'KeyG':
         if (this.toolbar_ && (e.ctrlKey || e.metaKey) && e.altKey) {
           this.toolbarManager_.showToolbars();
           this.toolbar_.selectPageNumber();
         }
         return;
-      case 219:  // Left bracket key.
+      case 'BracketLeft':
         if (e.ctrlKey)
           this.rotateCounterClockwise_();
         return;
-      case 220:  // Backslash key.
+      case 'Backslash':
         if (e.ctrlKey)
           this.zoomToolbar_.fitToggleFromHotKey();
         return;
-      case 221:  // Right bracket key.
+      case 'BracketRight':
         if (e.ctrlKey)
           this.rotateClockwise_();
         return;