Revert "Fixed odd behavior for keyboards using the AL_CONSUMER_CONTROL_CONFIG"

This reverts commit 6b730574, except for the
AUTHORS change from that commit.

BUG=398345,420226
TBR=garykac

Review URL: https://codereview.chromium.org/643243002

Cr-Commit-Position: refs/heads/master@{#299182}

ui/events/keycodes/keyboard_code_conversion_x.cc

@@ -780,6 +780,8 @@ KeyboardCode KeyboardCodeFromXKeysym(unsigned int keysym) {
     // 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:
@@ -827,13 +829,6 @@ KeyboardCode KeyboardCodeFromXKeysym(unsigned int keysym) {
     case XF86XK_LaunchB:  // F4 on an Apple keyboard.
     case XF86XK_Calculator:
       return VKEY_MEDIA_LAUNCH_APP2;
-
-    // XF86XK_Tools is generated from HID Usage AL_CONSUMER_CONTROL_CONFIG
-    // (Usage 0x0183, Page 0x0C) and most commonly launches the OS default
-    // media player (see crbug.com/398345).
-    case XF86XK_Tools:
-      return VKEY_MEDIA_LAUNCH_MEDIA_SELECT;
-
     case XF86XK_WLAN:
       return VKEY_WLAN;
     case XF86XK_PowerOff: