[inspector] use same schedulePauseOnNextStatement strategy for Debugger.pause

test/inspector/protocol-test.js

Index: test/inspector/protocol-test.js
diff --git a/test/inspector/protocol-test.js b/test/inspector/protocol-test.js
index 5b625025fed575f2b644131112c1bcdf6749bf47..1e6c32f18422be5e7fd2ee3feb8eec85d32dc972 100644
--- a/test/inspector/protocol-test.js
+++ b/test/inspector/protocol-test.js
@@ -149,7 +149,8 @@ InspectorTest.logSourceLocation = function(location)
   }
   var script = InspectorTest._scriptMap.get(scriptId);
   if (!script.scriptSource) {
-    return Protocol.Debugger.getScriptSource({ scriptId })
+    // TODO(kozyatinskiy): doesn't assume that contextId == contextGroupId.
+    return Protocol.Debugger.getScriptSource({ scriptId }, script.executionContextId)
       .then(message => script.scriptSource = message.result.scriptSource)
       .then(dumpSourceWithLocation);
   }