Fix international-backslash key in Canadian French keyboard.

ui/base/keycodes/keyboard_code_conversion_x.cc

Index: ui/base/keycodes/keyboard_code_conversion_x.cc
diff --git a/ui/base/keycodes/keyboard_code_conversion_x.cc b/ui/base/keycodes/keyboard_code_conversion_x.cc
index d571ce80c1b30f70b3582f2e086067d85d785382..763f65838c93fc665457bd2e39c97ceca7cbc694 100644
--- a/ui/base/keycodes/keyboard_code_conversion_x.cc
+++ b/ui/base/keycodes/keyboard_code_conversion_x.cc
@@ -336,6 +336,11 @@ KeyboardCode KeyboardCodeFromXKeysym(unsigned int keysym) {
     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