Add a content API for postMessage

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
 #include "base/debug/trace_event.h"
 #include "base/files/file_path.h"
 #include "base/i18n/rtl.h"
+#include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/path_service.h"
 #include "base/process/kill.h"
 #include "base/process/process.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 2933 matching lines @@
   blink::WebMessagePortChannelArray channels(params.message_port_ids.size());
   for (size_t i = 0;
        i < params.message_port_ids.size() && i < params.new_routing_ids.size();
        ++i) {
     channels[i] =
         new WebMessagePortChannelImpl(params.new_routing_ids[i],
                                       params.message_port_ids[i],
                                       base::MessageLoopProxy::current().get());
   }
 
+  WebSerializedScriptValue serialized_script_value;
+  if (params.is_data_raw_string) {
+    v8::HandleScope handle_scope(v8::Isolate::GetCurrent());
+    v8::Local<v8::Context> context = frame->mainWorldScriptContext();
+    v8::Context::Scope context_scope(context);
+    V8ValueConverterImpl converter;
+    converter.SetDateAllowed(true);
+    converter.SetRegExpAllowed(true);
+    base::Value* value = new base::StringValue(params.data);

[mnaganov (inactive), 2014/07/14 15:19:29]

Use scoped_ptr. The converter doesn't acquire ownership of the value.

[sgurun-gerrit only, 2014/07/16 00:43:28]

Done.

+    v8::Handle<v8::Value> result_value = converter.ToV8Value(value, context);
+    serialized_script_value = WebSerializedScriptValue::serialize(result_value);
+  } else {
+    serialized_script_value = WebSerializedScriptValue::fromString(params.data);
+  }
+
   // Create an event with the message.  The final parameter to initMessageEvent
   // is the last event ID, which is not used with postMessage.
   WebDOMEvent event = frame->document().createEvent("MessageEvent");
   WebDOMMessageEvent msg_event = event.to<WebDOMMessageEvent>();
   msg_event.initMessageEvent("message",
                              // |canBubble| and |cancellable| are always false
                              false, false,
-                             WebSerializedScriptValue::fromString(params.data),
+                             serialized_script_value,
                              params.source_origin, source_frame, "", channels);
 
   // We must pass in the target_origin to do the security check on this side,
   // since it may have changed since the original postMessage call was made.
   WebSecurityOrigin target_origin;
   if (!params.target_origin.empty()) {
     target_origin =
         WebSecurityOrigin::createFromString(WebString(params.target_origin));
   }
   frame->dispatchMessageEventWithOriginCheck(target_origin, msg_event);
@@ skipping 1307 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content