multiple changes

* schain support for video ads
* device.ip support
* gpid support

dev-docs/bidders/yieldmo.md

@@ -42,6 +42,7 @@ The Yieldmo adapter supports in-stream video as of Prebid v4.18. Out-stream will
 | `skippable` | optional | If 'true', user can skip ad | `true` | `boolean` |
 | `skipafter` | optional | Number of seconds a video must play before skipping is enabled; only applicable if the ad is `skippable` | `5` | `integer` |
 | `mimes` | required | List of the content MIME types supported by the player | `["video/mp4"]` | `Array<string>` |
+| `device` | optional | User's device information. Currently we are expecting `ip` property only| `{ip: "111.222.333.444"}` | `object` |
 
 Following video parameters might be also defined in `mediaTypes.video` in order to simplify bidders configuration. If the same parameters was also defined in `params.video` it will be overriten by `params.video`. More details - https://docs.prebid.org/dev-docs/adunit-reference.html
 
@@ -52,7 +53,11 @@ In addition, Yieldmo adapter relies on parameters specified in the `mediaTypes.v
 |-------------------|----------|--------------------------------------------------------|-----------------|------------------|
 | `playerSize` | required | Width and height of the player | `[640, 480]` | `Array<integer>` |
 | `context` | required | `instream` or `outstream ` are only supported | `instream` | `string` |
-
+#### device object
+{: .table .table-bordered .table-striped }
+| Name | Scope | Description | Example | Type |
+|-------------------|----------|--------------------------------------------------------|-----------------|------------------|
+| `ip` | optional | User's IP address | `111.222.333.444` | `string`
 ### Example of in-stream Video Ad-unit
 ```javascript
 var videoAdUnits = [{
@@ -77,7 +82,10 @@ var videoAdUnits = [{
  bids: [{
  bidder: 'yieldmo',
  params: {
- placementId: '1524592390382976659' // required
+ placementId: '1524592390382976659',// required,
+ device: { // optional, object
+ ip: '111.222.333.444'
+ }
  }
  }]
 }];
@@ -88,23 +96,26 @@ var videoAdUnit = [{
  code: 'div-video-ad-1234567890',
  mediaTypes: {
  video: {
- playerSize: [640, 480], // required
+ playerSize: [640, 480],  // required
  context: 'outstream',
- mimes: ['video/mp4'], // required, array of strings
- placement: 3,  // required, integer ( 3,4,5 )
- maxduration: 30,  // required, integer
- protocols: [2, 3],  // required, array of integers
- api: [2, 3],  // required, array of integers
- playbackmethod: [1,2]  // required, array of integers
+ mimes: ['video/mp4'],  // required, array of strings
+ placement: 3, // required, integer ( 3,4,5 )
+ maxduration: 30, // required, integer
+ protocols: [2, 3], // required, array of integers
+ api: [2, 3], // required, array of integers
+ playbackmethod: [1,2] // required, array of integers
  }
  },
  bids: [{
  bidder: 'yieldmo',
  params: {
- placementId: '1524592390382976659' // required
+ placementId: '1524592390382976659', // required,
+ device: { // optional, object
+ ip: '111.222.333.444'
+ }
  }
  }]
 }];
 ```
 
-> Prebid out-stream demo - https://prebid-outstream-qa.yieldmo.com/prebid-outstream.html
+> [Prebid out-stream demo](https://prebid-outstream-qa.yieldmo.com/prebid-outstream.html)