Add support for three more plugin requests

pkg/analysis_server/lib/src/domain_analysis.dart

Index: pkg/analysis_server/lib/src/domain_analysis.dart
diff --git a/pkg/analysis_server/lib/src/domain_analysis.dart b/pkg/analysis_server/lib/src/domain_analysis.dart
index d903e865756895194ae4548235c0bd95a56199b8..ede1621fbb9c43f1c35572927171cf7e470f1513 100644
--- a/pkg/analysis_server/lib/src/domain_analysis.dart
+++ b/pkg/analysis_server/lib/src/domain_analysis.dart
@@ -16,6 +16,7 @@ import 'package:analysis_server/src/domains/analysis/navigation.dart';
 import 'package:analysis_server/src/domains/analysis/navigation_dart.dart';
 import 'package:analysis_server/src/operation/operation_analysis.dart'
     show NavigationOperation, OccurrencesOperation;
+import 'package:analysis_server/src/plugin/request_converter.dart';
 import 'package:analysis_server/src/protocol/protocol_internal.dart';
 import 'package:analysis_server/src/protocol_server.dart';
 import 'package:analysis_server/src/services/dependencies/library_dependencies.dart';
@@ -333,6 +334,15 @@ class AnalysisDomainHandler implements RequestHandler {
   Response setPriorityFiles(Request request) {
     var params = new AnalysisSetPriorityFilesParams.fromRequest(request);
     server.setPriorityFiles(request.id, params.files);
+    //
+    // Forward the request to the plugins.
+    //
+    RequestConverter converter = new RequestConverter();
+    server.pluginManager.setAnalysisSetPriorityFilesParams(
+        converter.convertAnalysisSetPriorityFilesParams(params));
+    //
+    // Send the response.
+    //
     return new AnalysisSetPriorityFilesResult().toResponse(request.id);
   }
 
@@ -345,6 +355,15 @@ class AnalysisDomainHandler implements RequestHandler {
     Map<AnalysisService, Set<String>> subMap = mapMap(params.subscriptions,
         valueCallback: (List<String> subscriptions) => subscriptions.toSet());
     server.setAnalysisSubscriptions(subMap);
+    //
+    // Forward the request to the plugins.
+    //
+    RequestConverter converter = new RequestConverter();
+    server.pluginManager.setAnalysisSetSubscriptionsParams(
+        converter.convertAnalysisSetSubscriptionsParams(params));
+    //
+    // Send the response.
+    //
     return new AnalysisSetSubscriptionsResult().toResponse(request.id);
   }
 
@@ -354,6 +373,15 @@ class AnalysisDomainHandler implements RequestHandler {
   Response updateContent(Request request) {
     var params = new AnalysisUpdateContentParams.fromRequest(request);
     server.updateContent(request.id, params.files);
+    //
+    // Forward the request to the plugins.
+    //
+    RequestConverter converter = new RequestConverter();
+    server.pluginManager.setAnalysisUpdateContentParams(
+        converter.convertAnalysisUpdateContentParams(params));
+    //
+    // Send the response.
+    //
     return new AnalysisUpdateContentResult().toResponse(request.id);
   }