Blimp: Add BlobChannel Helium messages and delegate impls.

blimp/common/logging_unittest.cc

Index: blimp/common/logging_unittest.cc
diff --git a/blimp/common/logging_unittest.cc b/blimp/common/logging_unittest.cc
index d14f748d64df7c7a4e0e5c357ee97d4b419fe120..7f1cab18e3f65c8728241c318f3e5cc5a815db38 100644
--- a/blimp/common/logging_unittest.cc
+++ b/blimp/common/logging_unittest.cc
@@ -7,8 +7,10 @@
 
 #include "base/at_exit.h"
 #include "base/strings/stringprintf.h"
+#include "blimp/common/create_blimp_message.h"
 #include "blimp/common/logging.h"
 #include "blimp/common/proto/blimp_message.pb.h"
+#include "blimp/common/proto/blob_channel.pb.h"
 #include "blimp/net/test_common.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -228,6 +230,19 @@ TEST_F(LoggingTest, RenderWidget) {
                   deleted_msg);
 }
 
+TEST_F(LoggingTest, BlobChannel) {
+  std::unique_ptr<BlobChannelMessage> blob_message(new BlobChannelMessage);
+  blob_message->set_type(BlobChannelMessage::TRANSFER_BLOB);
+  blob_message->set_blob_id("AAA");
+  blob_message->set_payload("123");
+
+  std::unique_ptr<BlimpMessage> blimp_message =
+      CreateBlimpMessage(std::move(blob_message));
+
+  VerifyLogOutput("type=BLOB_CHANNEL subtype=TRANSFER_BLOB id=\"414141\"",
+                  *blimp_message);
+}
+
 TEST_F(LoggingTest, Settings) {
   BlimpMessage message;
   message.set_type(BlimpMessage::SETTINGS);