Convert //extensions/browser/api from scoped_ptr to std::unique_ptr

extensions/browser/api/cast_channel/cast_framer.cc

Index: extensions/browser/api/cast_channel/cast_framer.cc
diff --git a/extensions/browser/api/cast_channel/cast_framer.cc b/extensions/browser/api/cast_channel/cast_framer.cc
index 70d6eb0c17b6f3d9b23ebf44ecaab7f3b62b0d37..c0dec4957b6ca41c1389e102d8fde0c3b7c8d935 100644
--- a/extensions/browser/api/cast_channel/cast_framer.cc
+++ b/extensions/browser/api/cast_channel/cast_framer.cc
@@ -40,7 +40,7 @@ void MessageFramer::MessageHeader::PrependToString(std::string* str) {
   MessageHeader output = *this;
   output.message_size = base::HostToNet32(message_size);
   size_t header_size = MessageHeader::header_size();
-  scoped_ptr<char, base::FreeDeleter> char_array(
+  std::unique_ptr<char, base::FreeDeleter> char_array(
       static_cast<char*>(malloc(header_size)));
   memcpy(char_array.get(), &output, header_size);
   str->insert(0, char_array.get(), header_size);
@@ -113,9 +113,9 @@ size_t MessageFramer::BytesRequested() {
   }
 }
 
-scoped_ptr<CastMessage> MessageFramer::Ingest(size_t num_bytes,
-                                              size_t* message_length,
-                                              ChannelError* error) {
+std::unique_ptr<CastMessage> MessageFramer::Ingest(size_t num_bytes,
+                                                   size_t* message_length,
+                                                   ChannelError* error) {
   DCHECK(error);
   DCHECK(message_length);
   if (error_) {
@@ -147,7 +147,7 @@ scoped_ptr<CastMessage> MessageFramer::Ingest(size_t num_bytes,
       break;
     case BODY:
       if (BytesRequested() == 0) {
-        scoped_ptr<CastMessage> parsed_message(new CastMessage);
+        std::unique_ptr<CastMessage> parsed_message(new CastMessage);
         if (!parsed_message->ParseFromArray(
                 input_buffer_->StartOfBuffer() + MessageHeader::header_size(),
                 body_size_)) {