Updating Gamepad API to match latest spec

content/browser/gamepad/gamepad_standard_mappings.h

 // 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.
 
 #ifndef CONTENT_BROWSER_GAMEPAD_GAMEPAD_STANDARD_MAPPINGS_H_
 #define CONTENT_BROWSER_GAMEPAD_GAMEPAD_STANDARD_MAPPINGS_H_
 
 #include "base/strings/string_piece.h"
-
-namespace blink {
-class WebGamepad;
-}
+#include "content/common/gamepad_hardware_buffer.h"
 
 namespace content {
 
 typedef void (*GamepadStandardMappingFunction)(
     const blink::WebGamepad& original,
     blink::WebGamepad* mapped);
 
 GamepadStandardMappingFunction GetGamepadStandardMappingFunction(
     const base::StringPiece& vendor_id,
     const base::StringPiece& product_id);
@@ skipping 26 matching lines @@
 };
 
 enum CanonicalAxisIndex {
   kAxisLeftStickX,
   kAxisLeftStickY,
   kAxisRightStickX,
   kAxisRightStickY,
   kNumAxes
 };
 
+const float default_button_pressed_threshold = 0.1f;

[scottmg, 2014/02/20 01:15:13]

kDefaultButtonPressedThreshold

(and possibly share this one with _mac)

+
+// Common mapping functions
+blink::WebGamepadButton AxisToButton(float input);
+blink::WebGamepadButton AxisNegativeAsButton(float input);
+blink::WebGamepadButton AxisPositiveAsButton(float input);
+void DpadFromAxis(blink::WebGamepad* mapped, float dir);
+
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GAMEPAD_GAMEPAD_STANDARD_MAPPINGS_H_