Change most uses of Pickle to base::Pickle

chrome/browser/media/webrtc_log_uploader.cc

Index: chrome/browser/media/webrtc_log_uploader.cc
diff --git a/chrome/browser/media/webrtc_log_uploader.cc b/chrome/browser/media/webrtc_log_uploader.cc
index b7e96e6705679ea738002bd8b06f70c54e959bf9..c72f817cc65c5e6e1c4a0670f61d6f08c0a68ee6 100644
--- a/chrome/browser/media/webrtc_log_uploader.cc
+++ b/chrome/browser/media/webrtc_log_uploader.cc
@@ -246,8 +246,8 @@ void WebRtcLogUploader::UploadStoredLog(
         .AddExtension(FILE_PATH_LITERAL(".meta"));
     if (base::ReadFileToString(meta_path, &meta_data_contents) &&
         !meta_data_contents.empty()) {
-      Pickle pickle(&meta_data_contents[0], meta_data_contents.size());
-      PickleIterator it(pickle);
+      base::Pickle pickle(&meta_data_contents[0], meta_data_contents.size());
+      base::PickleIterator it(pickle);
       std::string key, value;
       while (it.ReadString(&key) && it.ReadString(&value))
         (*meta_data.get())[key] = value;
@@ -296,7 +296,7 @@ void WebRtcLogUploader::LoggingStoppedDoStore(
   }
 
   if (meta_data.get() && !meta_data->empty()) {
-    Pickle pickle;
+    base::Pickle pickle;
     for (const auto& it : *meta_data.get()) {
       pickle.WriteString(it.first);
       pickle.WriteString(it.second);