make inlineMediaPlayback behavior consistent across platforms

Author: alexmarkley

packages/webview_flutter/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.3.18
+
+* Support inline media on iPhone if the HTML5 content requests it.
+
 ## 0.3.17
 
 * Fix pedantic lint errors. Added missing documentation and awaited some futures

packages/webview_flutter/ios/Classes/FlutterWebView.m

@@ -68,6 +68,7 @@ - (instancetype)initWithFrame:(CGRect)frame
     configuration.userContentController = userContentController;
     [self updateAutoMediaPlaybackPolicy:args[@"autoMediaPlaybackPolicy"]
                         inConfiguration:configuration];
+    configuration.allowsInlineMediaPlayback = true;
 
     _webView = [[WKWebView alloc] initWithFrame:frame configuration:configuration];
     _navigationDelegate = [[FLTWKNavigationDelegate alloc] initWithChannel:_channel];