mac: Fix key layout test on OSX 10.9+.

The test NSMenuItemAdditionsTest.TestMOnDifferentLayouts was failing because a
new French keyboard layout was added that the test logic failed to account
for.

BUG=390276

Review URL: https://codereview.chromium.org/585913004

Cr-Commit-Position: refs/heads/master@{#296115}

chrome/browser/ui/cocoa/nsmenuitem_additions_unittest.mm

@@ -329,9 +329,8 @@ TEST(NSMenuItemAdditionsTest, TestMOnDifferentLayouts) {
     NSString* layoutId = (NSString*)TISGetInputSourceProperty(
         ref, kTISPropertyInputSourceID);
     if ([layoutId isEqualToString:@"com.apple.keylayout.Belgian"] ||
-        [layoutId isEqualToString:@"com.apple.keylayout.French"] ||
-        [layoutId isEqualToString:@"com.apple.keylayout.French-numerical"] ||
-        [layoutId isEqualToString:@"com.apple.keylayout.Italian"]) {
+        [layoutId isEqualToString:@"com.apple.keylayout.Italian"] ||
+        [layoutId hasPrefix:@"com.apple.keylayout.French"]) {
       keyCode = 0x29;
     } else if ([layoutId isEqualToString:@"com.apple.keylayout.Turkish"]) {
       keyCode = 0x28;