1) Removes dependency of common/status.h from wv_cas_types.

2) Do not use glogs in example binary code.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=229984175

example/wv_cas_types_example.cc

@@ -8,9 +8,9 @@
 
 // Example of how to use types/functions in wv_cas_types.
 
+#include <iostream>
 #include <string>
 
-#include "glog/logging.h"
 #include "media_cas_packager_sdk/public/wv_cas_types.h"
 
 void CallCreateWvCasEncryptionRequestJson() {
@@ -21,7 +21,8 @@ void CallCreateWvCasEncryptionRequestJson() {
   request.key_rotation = true;
   std::string request_json;
   widevine::cas::CreateWvCasEncryptionRequestJson(request, &request_json);
-  LOG(INFO) << "CreateWvCasEncryptionRequestJson returns " << request_json;
+  std::cout << "CreateWvCasEncryptionRequestJson returns " << request_json
+            << std::endl;
 }
 
 int main(int argc, char **argv) {

media_cas_packager_sdk/public/wv_cas_types.cc

@@ -11,7 +11,6 @@
 #include "glog/logging.h"
 #include "base/macros.h"
 #include "google/protobuf/util/json_util.h"
-#include "common/status.h"
 #include "protos/public/media_cas_encryption.pb.h"
 
 using google::protobuf::util::JsonPrintOptions;

media_cas_packager_sdk/public/wv_cas_types.h

@@ -12,8 +12,6 @@
 #include <string>
 #include <vector>
 
-#include "common/status.h"
-
 namespace widevine {
 namespace cas {