Fix international-backslash key in Canadian French keyboard.

ui/base/keycodes/keyboard_code_conversion_x.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/keycodes/keyboard_code_conversion_x.h"
 
 #define XK_3270  // for XK_3270_BackTab
 #include <X11/keysym.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
@@ skipping 318 matching lines @@
     case XK_F22:
     case XK_F23:
     case XK_F24:
       return static_cast<KeyboardCode>(VKEY_F1 + (keysym - XK_F1));
     case XK_KP_F1:
     case XK_KP_F2:
     case XK_KP_F3:
     case XK_KP_F4:
       return static_cast<KeyboardCode>(VKEY_F1 + (keysym - XK_KP_F1));
 
+    case XK_guillemotleft:
+    case XK_guillemotright:
+    case XK_degree:
+      return VKEY_OEM_102;  // international backslash key in 102 keyboard.
+
     // When evdev is in use, /usr/share/X11/xkb/symbols/inet maps F13-18 keys
     // to the special XF86XK symbols to support Microsoft Ergonomic keyboards:
     // https://bugs.freedesktop.org/show_bug.cgi?id=5783
     // In Chrome, we map these X key symbols back to F13-18 since we don't have
     // VKEYs for these XF86XK symbols.
     case XF86XK_Tools:
       return VKEY_F13;
     case XF86XK_Launch5:
       return VKEY_F14;
     case XF86XK_Launch6:
@@ skipping 345 matching lines @@
     case VKEY_OEM_3:
       return shift ? XK_asciitilde : XK_quoteleft;
     case VKEY_OEM_4:
       return shift ? XK_braceleft : XK_bracketleft;
     case VKEY_OEM_5:
       return shift ? XK_bar : XK_backslash;
     case VKEY_OEM_6:
       return shift ? XK_braceright : XK_bracketright;
     case VKEY_OEM_7:
       return shift ? XK_quotedbl : XK_quoteright;
+    case VKEY_OEM_102:
+      return shift ? XK_guillemotleft : XK_guillemotright;
 
     case VKEY_F1:
     case VKEY_F2:
     case VKEY_F3:
     case VKEY_F4:
     case VKEY_F5:
     case VKEY_F6:
     case VKEY_F7:
     case VKEY_F8:
     case VKEY_F9:
@@ skipping 61 matching lines @@
     case VKEY_KBD_BRIGHTNESS_UP:
       return XF86XK_KbdBrightnessUp;
 
     default:
       LOG(WARNING) << "Unknown keycode:" << keycode;
       return 0;
     }
 }
 
 }  // namespace ui