Updating Gamepad API to match latest spec

ppapi/c/ppb_gamepad.h

Index: ppapi/c/ppb_gamepad.h
diff --git a/ppapi/c/ppb_gamepad.h b/ppapi/c/ppb_gamepad.h
index 4beb9b8f1f8599bdc5e720d47633670f16564d9f..13d5195899d1e3114be117d490917f898cd33a19 100644
--- a/ppapi/c/ppb_gamepad.h
+++ b/ppapi/c/ppb_gamepad.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From ppb_gamepad.idl modified Tue Apr 16 09:04:34 2013. */
+/* From ppb_gamepad.idl modified Sun Feb  9 16:16:26 2014. */
 
 #ifndef PPAPI_C_PPB_GAMEPAD_H_
 #define PPAPI_C_PPB_GAMEPAD_H_
@@ -28,6 +28,21 @@
  * @{
  */
 /**
+ * The data for one gamepad button.
+ */
+struct PP_GamepadButtonSampleData {
+  /**
+   * Is the button pressed?
+   */
+  PP_Bool pressed;
+  /**
+   * Normalized button value, in the range [0..1].
+   */
+  float value;
+};
+PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_GamepadButtonSampleData, 8);
+
+/**
  * The data for one gamepad device.
  */
 struct PP_GamepadSampleData {
@@ -48,7 +63,7 @@ struct PP_GamepadSampleData {
    * Normalized values for the buttons, indices valid up to |buttons_length|
    * - 1. Button values range from 0..1, and are in order of importance.
    */
-  float buttons[32];
+  struct PP_GamepadButtonSampleData buttons[32];
   /**
    * Monotonically increasing value that is incremented when the data have
    * been updated.
@@ -59,6 +74,10 @@ struct PP_GamepadSampleData {
    */
   uint16_t id[128];
   /**
+   * Mapping type (for example "standard")
+   */
+  uint16_t mapping[16];
+  /**
    * Is there a gamepad connected at this index? If this is false, no other
    * data in this structure is valid.
    */
@@ -66,7 +85,7 @@ struct PP_GamepadSampleData {
   /* Padding to make the struct the same size between 64 and 32. */
   char unused_pad_[4];
 };
-PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_GamepadSampleData, 472);
+PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_GamepadSampleData, 632);
 
 /**
  * The data for all gamepads connected to the system.
@@ -83,7 +102,7 @@ struct PP_GamepadsSampleData {
    */
   struct PP_GamepadSampleData items[4];
 };
-PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_GamepadsSampleData, 1896);
+PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_GamepadsSampleData, 2536);
 /**
  * @}
  */