Change most uses of Pickle to base::Pickle

chromecast/common/media/cma_param_traits.cc

Index: chromecast/common/media/cma_param_traits.cc
diff --git a/chromecast/common/media/cma_param_traits.cc b/chromecast/common/media/cma_param_traits.cc
index 33accb04672e6049f929050ddfe58b2583081071..2bb9a26cb1e4c278ecad86debe3435bf9cfaa8d6 100644
--- a/chromecast/common/media/cma_param_traits.cc
+++ b/chromecast/common/media/cma_param_traits.cc
@@ -45,7 +45,8 @@ void ParamTraits<media::AudioDecoderConfig>::Write(
 }
 
 bool ParamTraits<media::AudioDecoderConfig>::Read(
-    const Message* m, PickleIterator* iter,
+    const Message* m,
+    base::PickleIterator* iter,
     media::AudioDecoderConfig* r) {
   media::AudioCodec codec;
   media::SampleFormat sample_format;
@@ -96,7 +97,8 @@ void ParamTraits<media::VideoDecoderConfig>::Write(
 }
 
 bool ParamTraits<media::VideoDecoderConfig>::Read(
-    const Message* m, PickleIterator* iter,
+    const Message* m,
+    base::PickleIterator* iter,
     media::VideoDecoderConfig* r) {
   media::VideoCodec codec;
   media::VideoCodecProfile profile;