Revert of Use the new java_cpp_enum rule in content.

content/browser/gamepad/gamepad_standard_mappings_mac.mm

 // 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 "content/browser/gamepad/gamepad_standard_mappings.h"
 
 namespace content {
 
 namespace {
 
-void MapperXbox360Gamepad(const blink::WebGamepad& input,
-                          blink::WebGamepad* mapped) {
-  *mapped = input;
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] = AxisToButton(input.axes[2]);
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] = AxisToButton(input.axes[5]);
-  mapped->buttons[BUTTON_INDEX_BACK_SELECT] = input.buttons[9];
-  mapped->buttons[BUTTON_INDEX_START] = input.buttons[8];
-  mapped->buttons[BUTTON_INDEX_LEFT_THUMBSTICK] = input.buttons[6];
-  mapped->buttons[BUTTON_INDEX_RIGHT_THUMBSTICK] = input.buttons[7];
-  mapped->buttons[BUTTON_INDEX_DPAD_UP] = input.buttons[11];
-  mapped->buttons[BUTTON_INDEX_DPAD_DOWN] = input.buttons[12];
-  mapped->buttons[BUTTON_INDEX_DPAD_LEFT] = input.buttons[13];
-  mapped->buttons[BUTTON_INDEX_DPAD_RIGHT] = input.buttons[14];
-  mapped->buttons[BUTTON_INDEX_META] = input.buttons[10];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_X] = input.axes[3];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[4];
-  mapped->buttonsLength = BUTTON_INDEX_COUNT;
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperPlaystationSixAxis(const blink::WebGamepad& input,
-                              blink::WebGamepad* mapped) {
-  *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[14];
-  mapped->buttons[BUTTON_INDEX_SECONDARY] = input.buttons[13];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[15];
-  mapped->buttons[BUTTON_INDEX_QUATERNARY] = input.buttons[12];
-  mapped->buttons[BUTTON_INDEX_LEFT_SHOULDER] = input.buttons[10];
-  mapped->buttons[BUTTON_INDEX_RIGHT_SHOULDER] = input.buttons[11];
-
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] =
-      ButtonFromButtonAndAxis(input.buttons[8], input.axes[14]);
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] =
-      ButtonFromButtonAndAxis(input.buttons[9], input.axes[15]);
-
-  mapped->buttons[BUTTON_INDEX_BACK_SELECT] = input.buttons[0];
-  mapped->buttons[BUTTON_INDEX_START] = input.buttons[3];
-  mapped->buttons[BUTTON_INDEX_LEFT_THUMBSTICK] = input.buttons[1];
-  mapped->buttons[BUTTON_INDEX_RIGHT_THUMBSTICK] = input.buttons[2];
+void MapperXbox360Gamepad(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[2]);
+  mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[5]);
+  mapped->buttons[kButtonBackSelect] = input.buttons[9];
+  mapped->buttons[kButtonStart] = input.buttons[8];
+  mapped->buttons[kButtonLeftThumbstick] = input.buttons[6];
+  mapped->buttons[kButtonRightThumbstick] = input.buttons[7];
+  mapped->buttons[kButtonDpadUp] = input.buttons[11];
+  mapped->buttons[kButtonDpadDown] = input.buttons[12];
+  mapped->buttons[kButtonDpadLeft] = input.buttons[13];
+  mapped->buttons[kButtonDpadRight] = input.buttons[14];
+  mapped->buttons[kButtonMeta] = input.buttons[10];
+  mapped->axes[kAxisRightStickX] = input.axes[3];
+  mapped->axes[kAxisRightStickY] = input.axes[4];
+  mapped->buttonsLength = kNumButtons;
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperPlaystationSixAxis(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  mapped->buttons[kButtonPrimary] = input.buttons[14];
+  mapped->buttons[kButtonSecondary] = input.buttons[13];
+  mapped->buttons[kButtonTertiary] = input.buttons[15];
+  mapped->buttons[kButtonQuaternary] = input.buttons[12];
+  mapped->buttons[kButtonLeftShoulder] = input.buttons[10];
+  mapped->buttons[kButtonRightShoulder] = input.buttons[11];
+
+  mapped->buttons[kButtonLeftTrigger] = ButtonFromButtonAndAxis(
+      input.buttons[8], input.axes[14]);
+  mapped->buttons[kButtonRightTrigger] = ButtonFromButtonAndAxis(
+      input.buttons[9], input.axes[15]);
+
+  mapped->buttons[kButtonBackSelect] = input.buttons[0];
+  mapped->buttons[kButtonStart] = input.buttons[3];
+  mapped->buttons[kButtonLeftThumbstick] = input.buttons[1];
+  mapped->buttons[kButtonRightThumbstick] = input.buttons[2];
 
   // The SixAxis Dpad is pressure sensative
-  mapped->buttons[BUTTON_INDEX_DPAD_UP] =
-      ButtonFromButtonAndAxis(input.buttons[4], input.axes[10]);
-  mapped->buttons[BUTTON_INDEX_DPAD_DOWN] =
-      ButtonFromButtonAndAxis(input.buttons[6], input.axes[12]);
-  mapped->buttons[BUTTON_INDEX_DPAD_LEFT] =
-      ButtonFromButtonAndAxis(input.buttons[7], input.axes[13]);
-  mapped->buttons[BUTTON_INDEX_DPAD_RIGHT] =
-      ButtonFromButtonAndAxis(input.buttons[5], input.axes[11]);
-
-  mapped->buttons[BUTTON_INDEX_META] = input.buttons[16];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[5];
-
-  mapped->buttonsLength = BUTTON_INDEX_COUNT;
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperDualshock4(const blink::WebGamepad& input,
-                      blink::WebGamepad* mapped) {
+  mapped->buttons[kButtonDpadUp] = ButtonFromButtonAndAxis(
+      input.buttons[4], input.axes[10]);
+  mapped->buttons[kButtonDpadDown] = ButtonFromButtonAndAxis(
+      input.buttons[6], input.axes[12]);
+  mapped->buttons[kButtonDpadLeft] = ButtonFromButtonAndAxis(
+      input.buttons[7], input.axes[13]);
+  mapped->buttons[kButtonDpadRight] = ButtonFromButtonAndAxis(
+      input.buttons[5], input.axes[11]);
+
+  mapped->buttons[kButtonMeta] = input.buttons[16];
+  mapped->axes[kAxisRightStickY] = input.axes[5];
+
+  mapped->buttonsLength = kNumButtons;
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperDualshock4(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
   enum Dualshock4Buttons {
-    DUALSHOCK_BUTTON_TOUCHPAD = BUTTON_INDEX_COUNT,
-    DUALSHOCK_BUTTON_COUNT
+    kTouchpadButton = kNumButtons,
+    kNumDualshock4Buttons
   };
 
   *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[1];
-  mapped->buttons[BUTTON_INDEX_SECONDARY] = input.buttons[2];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[0];
-  mapped->buttons[BUTTON_INDEX_QUATERNARY] = input.buttons[3];
-  mapped->buttons[BUTTON_INDEX_LEFT_SHOULDER] = input.buttons[4];
-  mapped->buttons[BUTTON_INDEX_RIGHT_SHOULDER] = input.buttons[5];
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] = AxisToButton(input.axes[3]);
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] = AxisToButton(input.axes[4]);
-  mapped->buttons[BUTTON_INDEX_BACK_SELECT] = input.buttons[8];
-  mapped->buttons[BUTTON_INDEX_START] = input.buttons[9];
-  mapped->buttons[BUTTON_INDEX_LEFT_THUMBSTICK] = input.buttons[10];
-  mapped->buttons[BUTTON_INDEX_RIGHT_THUMBSTICK] = input.buttons[11];
-  mapped->buttons[BUTTON_INDEX_META] = input.buttons[12];
-  mapped->buttons[DUALSHOCK_BUTTON_TOUCHPAD] = input.buttons[13];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[5];
-  DpadFromAxis(mapped, input.axes[9]);
-
-  mapped->buttonsLength = DUALSHOCK_BUTTON_COUNT;
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperDirectInputStyle(const blink::WebGamepad& input,
-                            blink::WebGamepad* mapped) {
-  *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[1];
-  mapped->buttons[BUTTON_INDEX_SECONDARY] = input.buttons[2];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[0];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[5];
-  DpadFromAxis(mapped, input.axes[9]);
-  mapped->buttonsLength = BUTTON_INDEX_COUNT - 1; /* no meta */
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperMacallyIShock(const blink::WebGamepad& input,
-                         blink::WebGamepad* mapped) {
+  mapped->buttons[kButtonPrimary] = input.buttons[1];
+  mapped->buttons[kButtonSecondary] = input.buttons[2];
+  mapped->buttons[kButtonTertiary] = input.buttons[0];
+  mapped->buttons[kButtonQuaternary] = input.buttons[3];
+  mapped->buttons[kButtonLeftShoulder] = input.buttons[4];
+  mapped->buttons[kButtonRightShoulder] = input.buttons[5];
+  mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[3]);
+  mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[4]);
+  mapped->buttons[kButtonBackSelect] = input.buttons[8];
+  mapped->buttons[kButtonStart] = input.buttons[9];
+  mapped->buttons[kButtonLeftThumbstick] = input.buttons[10];
+  mapped->buttons[kButtonRightThumbstick] = input.buttons[11];
+  mapped->buttons[kButtonMeta] = input.buttons[12];
+  mapped->buttons[kTouchpadButton] = input.buttons[13];
+  mapped->axes[kAxisRightStickY] = input.axes[5];
+  DpadFromAxis(mapped, input.axes[9]);
+
+  mapped->buttonsLength = kNumDualshock4Buttons;
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperDirectInputStyle(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  mapped->buttons[kButtonPrimary] = input.buttons[1];
+  mapped->buttons[kButtonSecondary] = input.buttons[2];
+  mapped->buttons[kButtonTertiary] = input.buttons[0];
+  mapped->axes[kAxisRightStickY] = input.axes[5];
+  DpadFromAxis(mapped, input.axes[9]);
+  mapped->buttonsLength = kNumButtons - 1; /* no meta */
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperMacallyIShock(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
   enum IShockButtons {
-    ISHOCK_BUTTON_C = BUTTON_INDEX_COUNT,
-    ISHOCK_BUTTON_D,
-    ISHOCK_BUTTON_E,
-    ISHOCK_BUTTON_COUNT,
+    kButtonC = kNumButtons,
+    kButtonD,
+    kButtonE,
+    kNumIShockButtons
   };
 
   *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[6];
-  mapped->buttons[BUTTON_INDEX_SECONDARY] = input.buttons[5];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[7];
-  mapped->buttons[BUTTON_INDEX_QUATERNARY] = input.buttons[4];
-  mapped->buttons[BUTTON_INDEX_LEFT_SHOULDER] = input.buttons[14];
-  mapped->buttons[BUTTON_INDEX_RIGHT_SHOULDER] = input.buttons[12];
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] = input.buttons[15];
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] = input.buttons[13];
-  mapped->buttons[BUTTON_INDEX_BACK_SELECT] = input.buttons[9];
-  mapped->buttons[BUTTON_INDEX_START] = input.buttons[10];
-  mapped->buttons[BUTTON_INDEX_LEFT_THUMBSTICK] = input.buttons[16];
-  mapped->buttons[BUTTON_INDEX_RIGHT_THUMBSTICK] = input.buttons[17];
-  mapped->buttons[BUTTON_INDEX_DPAD_UP] = input.buttons[0];
-  mapped->buttons[BUTTON_INDEX_DPAD_DOWN] = input.buttons[1];
-  mapped->buttons[BUTTON_INDEX_DPAD_LEFT] = input.buttons[2];
-  mapped->buttons[BUTTON_INDEX_DPAD_RIGHT] = input.buttons[3];
-  mapped->buttons[BUTTON_INDEX_META] = input.buttons[11];
-  mapped->buttons[ISHOCK_BUTTON_C] = input.buttons[8];
-  mapped->buttons[ISHOCK_BUTTON_D] = input.buttons[18];
-  mapped->buttons[ISHOCK_BUTTON_E] = input.buttons[19];
-  mapped->axes[AXIS_INDEX_LEFT_STICK_X] = input.axes[0];
-  mapped->axes[AXIS_INDEX_LEFT_STICK_Y] = input.axes[1];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_X] = -input.axes[5];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[6];
-
-  mapped->buttonsLength = ISHOCK_BUTTON_COUNT;
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperXGEAR(const blink::WebGamepad& input, blink::WebGamepad* mapped) {
-  *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[2];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[3];
-  mapped->buttons[BUTTON_INDEX_QUATERNARY] = input.buttons[0];
-  mapped->buttons[BUTTON_INDEX_LEFT_SHOULDER] = input.buttons[6];
-  mapped->buttons[BUTTON_INDEX_RIGHT_SHOULDER] = input.buttons[7];
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] = input.buttons[4];
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] = input.buttons[5];
-  DpadFromAxis(mapped, input.axes[9]);
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_X] = input.axes[5];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[2];
-  mapped->buttonsLength = BUTTON_INDEX_COUNT - 1; /* no meta */
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperSmartJoyPLUS(const blink::WebGamepad& input,
-                        blink::WebGamepad* mapped) {
-  *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[2];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[3];
-  mapped->buttons[BUTTON_INDEX_QUATERNARY] = input.buttons[0];
-  mapped->buttons[BUTTON_INDEX_START] = input.buttons[8];
-  mapped->buttons[BUTTON_INDEX_BACK_SELECT] = input.buttons[9];
-  mapped->buttons[BUTTON_INDEX_LEFT_SHOULDER] = input.buttons[6];
-  mapped->buttons[BUTTON_INDEX_RIGHT_SHOULDER] = input.buttons[7];
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] = input.buttons[4];
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] = input.buttons[5];
-  DpadFromAxis(mapped, input.axes[9]);
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[5];
-  mapped->buttonsLength = BUTTON_INDEX_COUNT - 1; /* no meta */
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperDragonRiseGeneric(const blink::WebGamepad& input,
-                             blink::WebGamepad* mapped) {
-  *mapped = input;
-  DpadFromAxis(mapped, input.axes[9]);
-  mapped->axes[AXIS_INDEX_LEFT_STICK_X] = input.axes[0];
-  mapped->axes[AXIS_INDEX_LEFT_STICK_Y] = input.axes[1];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_X] = input.axes[2];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[5];
-  mapped->buttonsLength = BUTTON_INDEX_COUNT - 1; /* no meta */
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperOnLiveWireless(const blink::WebGamepad& input,
-                          blink::WebGamepad* mapped) {
-  *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[0];
-  mapped->buttons[BUTTON_INDEX_SECONDARY] = input.buttons[1];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[3];
-  mapped->buttons[BUTTON_INDEX_QUATERNARY] = input.buttons[4];
-  mapped->buttons[BUTTON_INDEX_LEFT_SHOULDER] = input.buttons[6];
-  mapped->buttons[BUTTON_INDEX_RIGHT_SHOULDER] = input.buttons[7];
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] = AxisToButton(input.axes[2]);
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] = AxisToButton(input.axes[5]);
-  mapped->buttons[BUTTON_INDEX_BACK_SELECT] = input.buttons[10];
-  mapped->buttons[BUTTON_INDEX_START] = input.buttons[11];
-  mapped->buttons[BUTTON_INDEX_LEFT_THUMBSTICK] = input.buttons[13];
-  mapped->buttons[BUTTON_INDEX_RIGHT_THUMBSTICK] = input.buttons[14];
-  mapped->buttons[BUTTON_INDEX_META] = input.buttons[12];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_X] = input.axes[3];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[4];
-  DpadFromAxis(mapped, input.axes[9]);
-
-  mapped->buttonsLength = BUTTON_INDEX_COUNT;
-  mapped->axesLength = AXIS_INDEX_COUNT;
-}
-
-void MapperADT1(const blink::WebGamepad& input, blink::WebGamepad* mapped) {
-  *mapped = input;
-  mapped->buttons[BUTTON_INDEX_PRIMARY] = input.buttons[0];
-  mapped->buttons[BUTTON_INDEX_SECONDARY] = input.buttons[1];
-  mapped->buttons[BUTTON_INDEX_TERTIARY] = input.buttons[3];
-  mapped->buttons[BUTTON_INDEX_QUATERNARY] = input.buttons[4];
-  mapped->buttons[BUTTON_INDEX_LEFT_SHOULDER] = input.buttons[6];
-  mapped->buttons[BUTTON_INDEX_RIGHT_SHOULDER] = input.buttons[7];
-  mapped->buttons[BUTTON_INDEX_LEFT_TRIGGER] = AxisToButton(input.axes[3]);
-  mapped->buttons[BUTTON_INDEX_RIGHT_TRIGGER] = AxisToButton(input.axes[4]);
-  mapped->buttons[BUTTON_INDEX_BACK_SELECT] = NullButton();
-  mapped->buttons[BUTTON_INDEX_START] = NullButton();
-  mapped->buttons[BUTTON_INDEX_LEFT_THUMBSTICK] = input.buttons[13];
-  mapped->buttons[BUTTON_INDEX_RIGHT_THUMBSTICK] = input.buttons[14];
-  mapped->buttons[BUTTON_INDEX_META] = input.buttons[12];
-  mapped->axes[AXIS_INDEX_RIGHT_STICK_Y] = input.axes[5];
-  DpadFromAxis(mapped, input.axes[9]);
-
-  mapped->buttonsLength = BUTTON_INDEX_COUNT;
-  mapped->axesLength = AXIS_INDEX_COUNT;
+  mapped->buttons[kButtonPrimary] = input.buttons[6];
+  mapped->buttons[kButtonSecondary] = input.buttons[5];
+  mapped->buttons[kButtonTertiary] = input.buttons[7];
+  mapped->buttons[kButtonQuaternary] = input.buttons[4];
+  mapped->buttons[kButtonLeftShoulder] = input.buttons[14];
+  mapped->buttons[kButtonRightShoulder] = input.buttons[12];
+  mapped->buttons[kButtonLeftTrigger] = input.buttons[15];
+  mapped->buttons[kButtonRightTrigger] = input.buttons[13];
+  mapped->buttons[kButtonBackSelect] = input.buttons[9];
+  mapped->buttons[kButtonStart] = input.buttons[10];
+  mapped->buttons[kButtonLeftThumbstick] = input.buttons[16];
+  mapped->buttons[kButtonRightThumbstick] = input.buttons[17];
+  mapped->buttons[kButtonDpadUp] = input.buttons[0];
+  mapped->buttons[kButtonDpadDown] = input.buttons[1];
+  mapped->buttons[kButtonDpadLeft] = input.buttons[2];
+  mapped->buttons[kButtonDpadRight] = input.buttons[3];
+  mapped->buttons[kButtonMeta] = input.buttons[11];
+  mapped->buttons[kButtonC] = input.buttons[8];
+  mapped->buttons[kButtonD] = input.buttons[18];
+  mapped->buttons[kButtonE] = input.buttons[19];
+  mapped->axes[kAxisLeftStickX] = input.axes[0];
+  mapped->axes[kAxisLeftStickY] = input.axes[1];
+  mapped->axes[kAxisRightStickX] = -input.axes[5];
+  mapped->axes[kAxisRightStickY] = input.axes[6];
+
+  mapped->buttonsLength = kNumIShockButtons;
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperXGEAR(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  mapped->buttons[kButtonPrimary] = input.buttons[2];
+  mapped->buttons[kButtonTertiary] = input.buttons[3];
+  mapped->buttons[kButtonQuaternary] = input.buttons[0];
+  mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
+  mapped->buttons[kButtonRightShoulder] = input.buttons[7];
+  mapped->buttons[kButtonLeftTrigger] = input.buttons[4];
+  mapped->buttons[kButtonRightTrigger] = input.buttons[5];
+  DpadFromAxis(mapped, input.axes[9]);
+  mapped->axes[kAxisRightStickX] = input.axes[5];
+  mapped->axes[kAxisRightStickY] = input.axes[2];
+  mapped->buttonsLength = kNumButtons - 1; /* no meta */
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperSmartJoyPLUS(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  mapped->buttons[kButtonPrimary] = input.buttons[2];
+  mapped->buttons[kButtonTertiary] = input.buttons[3];
+  mapped->buttons[kButtonQuaternary] = input.buttons[0];
+  mapped->buttons[kButtonStart] = input.buttons[8];
+  mapped->buttons[kButtonBackSelect] = input.buttons[9];
+  mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
+  mapped->buttons[kButtonRightShoulder] = input.buttons[7];
+  mapped->buttons[kButtonLeftTrigger] = input.buttons[4];
+  mapped->buttons[kButtonRightTrigger] = input.buttons[5];
+  DpadFromAxis(mapped, input.axes[9]);
+  mapped->axes[kAxisRightStickY] = input.axes[5];
+  mapped->buttonsLength = kNumButtons - 1; /* no meta */
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperDragonRiseGeneric(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  DpadFromAxis(mapped, input.axes[9]);
+  mapped->axes[kAxisLeftStickX] = input.axes[0];
+  mapped->axes[kAxisLeftStickY] = input.axes[1];
+  mapped->axes[kAxisRightStickX] = input.axes[2];
+  mapped->axes[kAxisRightStickY] = input.axes[5];
+  mapped->buttonsLength = kNumButtons - 1; /* no meta */
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperOnLiveWireless(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  mapped->buttons[kButtonPrimary] = input.buttons[0];
+  mapped->buttons[kButtonSecondary] = input.buttons[1];
+  mapped->buttons[kButtonTertiary] = input.buttons[3];
+  mapped->buttons[kButtonQuaternary] = input.buttons[4];
+  mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
+  mapped->buttons[kButtonRightShoulder] = input.buttons[7];
+  mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[2]);
+  mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[5]);
+  mapped->buttons[kButtonBackSelect] = input.buttons[10];
+  mapped->buttons[kButtonStart] = input.buttons[11];
+  mapped->buttons[kButtonLeftThumbstick] = input.buttons[13];
+  mapped->buttons[kButtonRightThumbstick] = input.buttons[14];
+  mapped->buttons[kButtonMeta] = input.buttons[12];
+  mapped->axes[kAxisRightStickX] = input.axes[3];
+  mapped->axes[kAxisRightStickY] = input.axes[4];
+  DpadFromAxis(mapped, input.axes[9]);
+
+  mapped->buttonsLength = kNumButtons;
+  mapped->axesLength = kNumAxes;
+}
+
+void MapperADT1(
+    const blink::WebGamepad& input,
+    blink::WebGamepad* mapped) {
+  *mapped = input;
+  mapped->buttons[kButtonPrimary] = input.buttons[0];
+  mapped->buttons[kButtonSecondary] = input.buttons[1];
+  mapped->buttons[kButtonTertiary] = input.buttons[3];
+  mapped->buttons[kButtonQuaternary] = input.buttons[4];
+  mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
+  mapped->buttons[kButtonRightShoulder] = input.buttons[7];
+  mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[3]);
+  mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[4]);
+  mapped->buttons[kButtonBackSelect] = NullButton();
+  mapped->buttons[kButtonStart] = NullButton();
+  mapped->buttons[kButtonLeftThumbstick] = input.buttons[13];
+  mapped->buttons[kButtonRightThumbstick] = input.buttons[14];
+  mapped->buttons[kButtonMeta] = input.buttons[12];
+  mapped->axes[kAxisRightStickY] = input.axes[5];
+  DpadFromAxis(mapped, input.axes[9]);
+
+  mapped->buttonsLength = kNumButtons;
+  mapped->axesLength = kNumAxes;
 }
 
 struct MappingData {
   const char* const vendor_id;
   const char* const product_id;
   GamepadStandardMappingFunction function;
 } AvailableMappings[] = {
-      // http://www.linux-usb.org/usb.ids
-      {"0079", "0006", MapperDragonRiseGeneric},  // DragonRise Generic USB
-      {"045e", "028e", MapperXbox360Gamepad},     // Xbox 360 Controller
-      {"045e", "028f", MapperXbox360Gamepad},    // Xbox 360 Wireless Controller
-      {"046d", "c216", MapperDirectInputStyle},  // Logitech F310, D mode
-      {"046d", "c218", MapperDirectInputStyle},  // Logitech F510, D mode
-      {"046d", "c219", MapperDirectInputStyle},  // Logitech F710, D mode
-      {"054c", "0268", MapperPlaystationSixAxis},  // Playstation SIXAXIS
-      {"054c", "05c4", MapperDualshock4},          // Playstation Dualshock 4
-      {"0925", "0005", MapperSmartJoyPLUS},        // SmartJoy PLUS Adapter
-      {"0e8f", "0003", MapperXGEAR},  // XFXforce XGEAR PS2 Controller
-      {"2222", "0060", MapperDirectInputStyle},  // Macally iShockX, analog mode
-      {"2222", "4010", MapperMacallyIShock},     // Macally iShock
-      {"2378", "1008", MapperOnLiveWireless},  // OnLive Controller (Bluetooth)
-      {"2378", "100a", MapperOnLiveWireless},  // OnLive Controller (Wired)
-      {"18d1", "2c40", MapperADT1},            // ADT-1 Controller
+  // http://www.linux-usb.org/usb.ids
+  { "0079", "0006", MapperDragonRiseGeneric },  // DragonRise Generic USB
+  { "045e", "028e", MapperXbox360Gamepad },     // Xbox 360 Controller
+  { "045e", "028f", MapperXbox360Gamepad },     // Xbox 360 Wireless Controller
+  { "046d", "c216", MapperDirectInputStyle },   // Logitech F310, D mode
+  { "046d", "c218", MapperDirectInputStyle },   // Logitech F510, D mode
+  { "046d", "c219", MapperDirectInputStyle },   // Logitech F710, D mode
+  { "054c", "0268", MapperPlaystationSixAxis }, // Playstation SIXAXIS
+  { "054c", "05c4", MapperDualshock4 },         // Playstation Dualshock 4
+  { "0925", "0005", MapperSmartJoyPLUS },       // SmartJoy PLUS Adapter
+  { "0e8f", "0003", MapperXGEAR },              // XFXforce XGEAR PS2 Controller
+  { "2222", "0060", MapperDirectInputStyle },   // Macally iShockX, analog mode
+  { "2222", "4010", MapperMacallyIShock },      // Macally iShock
+  { "2378", "1008", MapperOnLiveWireless },     // OnLive Controller (Bluetooth)
+  { "2378", "100a", MapperOnLiveWireless },     // OnLive Controller (Wired)
+  { "18d1", "2c40", MapperADT1 },               // ADT-1 Controller
 };
 
 }  // namespace
 
 GamepadStandardMappingFunction GetGamepadStandardMappingFunction(
     const base::StringPiece& vendor_id,
     const base::StringPiece& product_id) {
   for (size_t i = 0; i < arraysize(AvailableMappings); ++i) {
     MappingData& item = AvailableMappings[i];
     if (vendor_id == item.vendor_id && product_id == item.product_id)
       return item.function;
   }
   return NULL;
 }
 
 }  // namespace content