Revert 281133 "chrome.hid: enrich model with report IDs"

trunk/src/chrome/common/extensions/api/hid.idl

Index: trunk/src/chrome/common/extensions/api/hid.idl
===================================================================
--- trunk/src/chrome/common/extensions/api/hid.idl	(revision 281281)
+++ trunk/src/chrome/common/extensions/api/hid.idl	(working copy)
@@ -6,15 +6,15 @@
 // This API provides access to HID operations from within the context of an app.
 // Using this API, apps can function as drivers for hardware devices.
 namespace hid {
-  // HID top-level collection attributes.
-  // Each enumerated device interface exposes an array of these objects.
-  // |usagePage|: HID usage page identifier.
+  // HID usage pair. Each enumerated device interface exposes an array of
+  // these objects. Values correspond to those defined by the
+  // <a href="http://www.usb.org/developers/devclass_docs/HID1_11.pdf>
+  // HID device class specification</a>.
+  // |usage_page|: HID usage page identifier.
   // |usage|: Page-defined usage identifier.
-  // |reportIds|: Report IDs which belong to the collection and to its children.
-  dictionary HidCollectionInfo {
-    long usagePage;
+  dictionary HidUsageAndPage {
+    long usage_page;
     long usage;
-    long[] reportIds;
   };
 
   // Returned by <code>getDevices</code> functions to describes a connected HID
@@ -22,18 +22,12 @@
   // |deviceId|: Device opaque ID.
   // |vendorId|: Vendor ID.
   // |productId|: Product ID.
-  // |collections|: Top-level collections from this device's report descriptor.
-  // |maxInputReportSize|: Top-level collection's max input report size.
-  // |maxOutputReportSize|: Top-level collection's max output report size.
-  // |maxFeatureReportSize|: Top-level collection's max feature report size.
+  // |usages|: HID usage pairs exposed by underlying Top-level collections.
   dictionary HidDeviceInfo {
     long deviceId;
     long vendorId;
     long productId;
-    HidCollectionInfo[] collections;
-    long maxInputReportSize;
-    long maxOutputReportSize;
-    long maxFeatureReportSize;
+    HidUsageAndPage[] usages;
   };
 
   // Returned by <code>connect</code> to represent a communication session with