Revise DOM Level 3 US Layout maps.

ui/events/keycodes/dom_us_layout_data.h

 // Copyright (c) 2015 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.
 
 #ifndef UI_EVENTS_KEYCODES_DOM_US_LAYOUT_DATA_H_
 #define UI_EVENTS_KEYCODES_DOM_US_LAYOUT_DATA_H_
 
 namespace ui {
 
 // This table maps a DomCode to a printable character, assuming US layout.
+// It is used by DomCodeToUsLayoutMeaning(), which provides a fallback
+// interpretation when there is no other way to map a physical key.
 const struct PrintableCodeEntry {
   DomCode dom_code;
   base::char16 character[2];  // normal, shift
 } kPrintableCodeMap[] = {
     {DomCode::KEY_A, {'a', 'A'}},
     {DomCode::KEY_B, {'b', 'B'}},
     {DomCode::KEY_C, {'c', 'C'}},
     {DomCode::KEY_D, {'d', 'D'}},
     {DomCode::KEY_E, {'e', 'E'}},
     {DomCode::KEY_F, {'f', 'F'}},
@@ skipping 32 matching lines @@
     {DomCode::EQUAL, {'=', '+'}},
     {DomCode::BRACKET_LEFT, {'[', '{'}},
     {DomCode::BRACKET_RIGHT, {']', '}'}},
     {DomCode::BACKSLASH, {'\\', '|'}},
     {DomCode::SEMICOLON, {';', ':'}},
     {DomCode::QUOTE, {'\'', '"'}},
     {DomCode::BACKQUOTE, {'`', '~'}},
     {DomCode::COMMA, {',', '<'}},
     {DomCode::PERIOD, {'.', '>'}},
     {DomCode::SLASH, {'/', '?'}},
-    {DomCode::INTL_BACKSLASH, {'\\', '|'}},
+    {DomCode::INTL_BACKSLASH, {'<', '>'}},
+    {DomCode::INTL_HASH, {'\\', '|'}},
     {DomCode::INTL_YEN, {0x00A5, '|'}},
     {DomCode::NUMPAD_DIVIDE, {'/', '/'}},
     {DomCode::NUMPAD_MULTIPLY, {'*', '*'}},
     {DomCode::NUMPAD_SUBTRACT, {'-', '-'}},
     {DomCode::NUMPAD_ADD, {'+', '+'}},
     {DomCode::NUMPAD1, {'1', '1'}},
     {DomCode::NUMPAD2, {'2', '2'}},
     {DomCode::NUMPAD3, {'3', '3'}},
     {DomCode::NUMPAD4, {'4', '4'}},
     {DomCode::NUMPAD5, {'5', '5'}},
     {DomCode::NUMPAD6, {'6', '6'}},
     {DomCode::NUMPAD7, {'7', '7'}},
     {DomCode::NUMPAD8, {'8', '8'}},
     {DomCode::NUMPAD9, {'9', '9'}},
     {DomCode::NUMPAD0, {'0', '0'}},
     {DomCode::NUMPAD_DECIMAL, {'.', '.'}},
     {DomCode::NUMPAD_EQUAL, {'=', '='}},
     {DomCode::NUMPAD_COMMA, {',', ','}},
     {DomCode::NUMPAD_PAREN_LEFT, {'(', '('}},
     {DomCode::NUMPAD_PAREN_RIGHT, {')', ')'}},
     {DomCode::NUMPAD_SIGN_CHANGE, {0x00B1, 0x00B1}},
 };
 
 // This table maps a DomCode to a DomKey, assuming US keyboard layout.
+// It is used by DomCodeToUsLayoutMeaning(), which provides a fallback
+// interpretation when there is no other way to map a physical key.
 const struct NonPrintableCodeEntry {
   DomCode dom_code;
   DomKey dom_key;
   base::char16 character;
 } kNonPrintableCodeMap[] = {
     {DomCode::ABORT, DomKey::CANCEL},
     {DomCode::AGAIN, DomKey::AGAIN},
     {DomCode::ALT_LEFT, DomKey::ALT},
     {DomCode::ALT_RIGHT, DomKey::ALT},
     {DomCode::ARROW_DOWN, DomKey::ARROW_DOWN},
@@ skipping 322 matching lines @@
     {DomCode::ENTER, VKEY_RETURN},              // 0x070028 Enter
     {DomCode::ESCAPE, VKEY_ESCAPE},             // 0x070029 Escape
     {DomCode::BACKSPACE, VKEY_BACK},            // 0x07002A Backspace
     {DomCode::TAB, VKEY_TAB},                   // 0x07002B Tab
     {DomCode::SPACE, VKEY_SPACE},               // 0x07002C Space
     {DomCode::MINUS, VKEY_OEM_MINUS},           // 0x07002D Minus
     {DomCode::EQUAL, VKEY_OEM_PLUS},            // 0x07002E Equal
     {DomCode::BRACKET_LEFT, VKEY_OEM_4},        // 0x07002F BracketLeft
     {DomCode::BRACKET_RIGHT, VKEY_OEM_6},       // 0x070030 BracketRight
     {DomCode::BACKSLASH, VKEY_OEM_5},           // 0x070031 Backslash
-    // DomCode::INTL_HASH, VKEY_OEM_5           // 0x070032 IntlHash
+    {DomCode::INTL_HASH, VKEY_OEM_5},           // 0x070032 IntlHash
     {DomCode::SEMICOLON, VKEY_OEM_1},           // 0x070033 Semicolon
     {DomCode::QUOTE, VKEY_OEM_7},               // 0x070034 Quote
     {DomCode::BACKQUOTE, VKEY_OEM_3},           // 0x070035 Backquote
     {DomCode::COMMA, VKEY_OEM_COMMA},           // 0x070036 Comma
     {DomCode::PERIOD, VKEY_OEM_PERIOD},         // 0x070037 Period
     {DomCode::SLASH, VKEY_OEM_2},               // 0x070038 Slash
     {DomCode::CAPS_LOCK, VKEY_CAPITAL},         // 0x070039 CapsLock
     {DomCode::F1, VKEY_F1},                     // 0x07003A F1
     {DomCode::F2, VKEY_F2},                     // 0x07003B F2
     {DomCode::F3, VKEY_F3},                     // 0x07003C F3
@@ skipping 132 matching lines @@
      VKEY_BROWSER_FAVORITES},                   // 0x0C022A BrowserFavorites
     {DomCode::ZOOM_TOGGLE, VKEY_ZOOM},          // 0x0C0232 ZoomToggle
 };
 
 // This table, used by UsLayoutKeyboardCodeToDomCode(), maps legacy
 // Windows-based VKEY values that are not part of kDomCodeToKeyboardCodeMap[]
 // to suitable DomCode values, where practical.
 const DomCodeToKeyboardCodeEntry kFallbackKeyboardCodeToDomCodeMap[] = {
     {DomCode::ALT_LEFT, VKEY_MENU},
     {DomCode::ALT_RIGHT, VKEY_ALTGR},
-    {DomCode::BACKQUOTE, VKEY_DBE_SBCSCHAR},
 #if defined(OS_POSIX)
     {DomCode::CONTEXT_MENU, VKEY_COMPOSE},
 #endif
     {DomCode::CONTROL_LEFT, VKEY_CONTROL},
     {DomCode::LANG1, VKEY_HANGUL},
     {DomCode::LANG2, VKEY_HANJA},
     {DomCode::LANG5, VKEY_DBE_DBCSCHAR},
     {DomCode::NUMPAD_CLEAR, VKEY_OEM_CLEAR},
+    {DomCode::NUMPAD_DECIMAL, VKEY_SEPARATOR},
     {DomCode::PROPS, VKEY_CRSEL},
     {DomCode::SHIFT_LEFT, VKEY_SHIFT},
     {DomCode::SUPER, VKEY_OEM_8},
     //
-    // VKEYs with no existing corresponding DomCode, but a USB usage code:
-    //  {DomCode::SYS_REQ, VKEY_ATTN},          // 0x07009A SysReq
-    //  {DomCode::SEPARATOR, VKEY_SEPARATOR},   // 0x07009F Separator
-    //  {DomCode::EX_SEL, VKEY_EXSEL},          // 0x0700A4 ExSel
-    //  {DomCode::PRINT, VKEY_PRINT},           // 0x0C0208 AC Print
-    //  {DomCode::MEDIA_PLAY, VKEY_PLAY},       // 0x0C00B0 MediaPlay
-    //  {DomCode::MEDIA_REWIND, VKEY_OEM_103},  // 0x0C00B4 MediaRewind
-    //  {DomCode::MEDIA_FAST_FORWARD, VKEY_OEM_104},
-    //                                          // 0x0C00B3 MediaFastForward
+    // VKEYs with no directly corresponding DomCode, but a USB usage code:
+    //  VKEY_ATTN                 // 0x07009A SysReq
+    //  VKEY_SEPARATOR            // 0x07009F Separator
+    //  VKEY_EXSEL                // 0x0700A4 ExSel
+    //  VKEY_PRINT                // 0x0C0208 AC Print
+    //  VKEY_PLAY                 // 0x0C00B0 MediaPlay
+    //  VKEY_OEM_103              // 0x0C00B4 MediaRewind
+    //  VKEY_OEM_104              // 0x0C00B3 MediaFastForward
+    //
+    // VKEYs with no corresponding DomCode, but a Linux evdev usage code:
+    //  VKEY_KBD_BRIGHTNESS_DOWN  //  evdev KEY_KBDILLUMDOWN
+    //  VKEY_KBD_BRIGHTNESS_UP    //  evdev KEY_KBDILLUMUP
+    //  VKEY_WLAN                 //  evdev KEY_WLAN
     //
     // VKEYs with no corresponding DomCode and no obvious USB usage code:
     //  VKEY_ACCEPT
     //  VKEY_BACKTAB
+    //  VKEY_DBE_SBCSCHAR
     //  VKEY_EREOF
     //  VKEY_FINAL
     //  VKEY_JUNJA
-    //  VKEY_KBD_BRIGHTNESS_DOWN
-    //  VKEY_KBD_BRIGHTNESS_UP
     //  VKEY_MODECHANGE
     //  VKEY_NONAME
     //  VKEY_PA1
     //  VKEY_PACKET
     //  VKEY_PROCESSKEY
-    //  VKEY_WLAN
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_KEYCODES_DOM_US_LAYOUT_DATA_H_