Add support for Macally iShock.

content/browser/gamepad/gamepad_standard_mappings_mac.mm

Index: content/browser/gamepad/gamepad_standard_mappings_mac.mm
diff --git a/content/browser/gamepad/gamepad_standard_mappings_mac.mm b/content/browser/gamepad/gamepad_standard_mappings_mac.mm
index 4c33ef6656a0ab1ec3ccbb089ffc8e9c8476cb88..2c471a248f1f42eb6c880034d4b2d0e86004a2d2 100644
--- a/content/browser/gamepad/gamepad_standard_mappings_mac.mm
+++ b/content/browser/gamepad/gamepad_standard_mappings_mac.mm
@@ -93,6 +93,46 @@ void MapperDirectInputStyle(
   mapped->axesLength = kNumAxes;
 }
 
+void MapperMacallyIShock(
+    const WebKit::WebGamepad& input,
+    WebKit::WebGamepad* mapped) {
+  enum IShockButtons {
+    kButtonC = kNumButtons,
+    kButtonD,
+    kButtonE,
+    kNumIShockButtons
+  };
+
+  *mapped = input;
+  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;
+}
+
 struct MappingData {
   const char* const vendor_id;
   const char* const product_id;
@@ -106,6 +146,7 @@ struct MappingData {
   { "046d", "c219", MapperDirectInputStyle },   // Logitech F710, D mode
   { "054c", "0268", MapperPlaystationSixAxis }, // Playstation SIXAXIS
   { "2222", "0060", MapperDirectInputStyle },   // Macally iShockX, analog mode
+  { "2222", "4010", MapperMacallyIShock },      // Macally iShock
 };
 
 }  // namespace