Fix CodeForKeyboardEvent to properly calculate the scancode.

content/renderer/pepper/usb_key_code_conversion_win.cc

Index: content/renderer/pepper/usb_key_code_conversion_win.cc
diff --git a/content/renderer/pepper/usb_key_code_conversion_win.cc b/content/renderer/pepper/usb_key_code_conversion_win.cc
index 21c26abbdb1d57532972677d64486657c5c3920f..c9e0592b843a940d16b4b54317e23cacd25b2815 100644
--- a/content/renderer/pepper/usb_key_code_conversion_win.cc
+++ b/content/renderer/pepper/usb_key_code_conversion_win.cc
@@ -23,8 +23,13 @@ uint32_t UsbKeyCodeForKeyboardEvent(const WebKeyboardEvent& key_event) {
 }
 
 const char* CodeForKeyboardEvent(const WebKeyboardEvent& key_event) {
+  // Extract the scancode and extended bit from the native key event's lParam.
+  int scancode = (key_event.nativeKeyCode >> 16) & 0x000000FF;
+  if ((key_event.nativeKeyCode & (1 << 24)) != 0)
+    scancode |= 0xe000;
+
   ui::KeycodeConverter* key_converter = ui::KeycodeConverter::GetInstance();
-  return key_converter->NativeKeycodeToCode(key_event.nativeKeyCode);
+  return key_converter->NativeKeycodeToCode(scancode);

[Wez, 2013/12/03 03:02:57]

nit: There are equivalent functions in ui/events/keycode, so we should file a
bug to use those directly rather than Pepper having its own copy of this logic.

 }
 
 }  // namespace content