Overhaul JSON Schema Compiler to support a number of features required to

chrome/browser/extensions/api/tab_capture/tab_capture_api.cc

Index: chrome/browser/extensions/api/tab_capture/tab_capture_api.cc
diff --git a/chrome/browser/extensions/api/tab_capture/tab_capture_api.cc b/chrome/browser/extensions/api/tab_capture/tab_capture_api.cc
index 1c759836c831c9718d085622dbb4e9faa916d9a9..050638f89726160912167901a59bd8f7d44b290a 100644
--- a/chrome/browser/extensions/api/tab_capture/tab_capture_api.cc
+++ b/chrome/browser/extensions/api/tab_capture/tab_capture_api.cc
@@ -106,9 +106,10 @@ bool TabCaptureCaptureFunction::RunImpl() {
   // Append chrome specific tab constraints.
   for (std::vector<MediaStreamConstraint*>::iterator it = constraints.begin();
        it != constraints.end(); ++it) {
-    base::DictionaryValue* constraint = &(*it)->mandatory.additional_properties;
-    constraint->SetString(kMediaStreamSource, kMediaStreamSourceTab);
-    constraint->SetString(kMediaStreamSourceId, device_id);
+    (*it)->mandatory.additional_properties[kMediaStreamSource] =
+        linked_ptr<base::Value>(new base::StringValue(kMediaStreamSourceTab));
+    (*it)->mandatory.additional_properties[kMediaStreamSourceId] =
+        linked_ptr<base::Value>(new base::StringValue(device_id));
   }
 
   extensions::TabCaptureRegistry* registry =
@@ -116,8 +117,9 @@ bool TabCaptureCaptureFunction::RunImpl() {
   if (!registry->AddRequest(
           std::make_pair(render_process_id, routing_id),
           TabCaptureRegistry::TabCaptureRequest(
-              GetExtension()->id(), tab_id,
-              tab_capture::TAB_CAPTURE_TAB_CAPTURE_STATE_NONE))) {
+              GetExtension()->id(),
+              tab_id,
+              tab_capture::TAB_CAPTURE_STATE_NONE))) {
     error_ = kCapturingSameTab;
     return false;
   }