Change the cpp wrappers of audio input/video capture to use CompletionCallbackWithOutput.

ppapi/cpp/dev/resource_array_dev.cc

Index: ppapi/cpp/dev/resource_array_dev.cc
diff --git a/ppapi/cpp/dev/resource_array_dev.cc b/ppapi/cpp/dev/resource_array_dev.cc
index 6a8493fc6d3cabc60848b644b14c437acee5b5a2..5bd2549326469ebbd5687841ffceeead17cbb604 100644
--- a/ppapi/cpp/dev/resource_array_dev.cc
+++ b/ppapi/cpp/dev/resource_array_dev.cc
@@ -5,7 +5,10 @@
 #include "ppapi/cpp/dev/resource_array_dev.h"
 
 #include "ppapi/c/dev/ppb_resource_array_dev.h"
+#include "ppapi/c/pp_errors.h"
 #include "ppapi/cpp/instance_handle.h"
+#include "ppapi/cpp/logging.h"
+#include "ppapi/cpp/module.h"
 #include "ppapi/cpp/module_impl.h"
 
 namespace pp {
@@ -59,4 +62,31 @@ PP_Resource ResourceArray_Dev::operator[](uint32_t index) const {
   return get_interface<PPB_ResourceArray_Dev>()->GetAt(pp_resource(), index);
 }
 
+// static
+void ResourceArray_Dev::ArrayOutputCallbackConverter(void* user_data,
+                                                     int32_t result) {
+  ArrayOutputCallbackData* data =
+      static_cast<ArrayOutputCallbackData*>(user_data);
+
+  // data->resource_array_output should remain 0 if the call failed.
+  ResourceArray_Dev resources(PASS_REF, data->resource_array_output);
+  PP_DCHECK(resources.is_null() || result == PP_OK);
+
+  // Need to issue the "GetDataBuffer" even for error cases and when the number
+  // of items is 0.
+  PP_Resource* output_buf = static_cast<PP_Resource*>(
+      data->output.GetDataBuffer(
+          data->output.user_data, resources.is_null() ? 0 : resources.size(),
+          sizeof(PP_Resource)));
+  if (output_buf) {
+    for (uint32_t index = 0; index < resources.size(); ++index) {
+      output_buf[index] = resources[index];
+      Module::Get()->core()->AddRefResource(output_buf[index]);
+    }
+  }
+
+  PP_RunCompletionCallback(&data->original_callback, result);
+  delete data;
+}
+
 }  // namespace pp