Update third_party/protobuf to protobuf-v3.0.0-beta-3

third_party/protobuf/src/google/protobuf/util/internal/json_objectwriter.h

Index: third_party/protobuf/src/google/protobuf/util/internal/json_objectwriter.h
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/json_objectwriter.h b/third_party/protobuf/src/google/protobuf/util/internal/json_objectwriter.h
index 761a0a1087bc9372cdaa087f0690427b82a56594..cb7e2fb30c4fec5b621f720de734be48250cfbb9 100644
--- a/third_party/protobuf/src/google/protobuf/util/internal/json_objectwriter.h
+++ b/third_party/protobuf/src/google/protobuf/util/internal/json_objectwriter.h
@@ -90,9 +90,10 @@ class LIBPROTOBUF_EXPORT JsonObjectWriter : public StructuredObjectWriter {
   JsonObjectWriter(StringPiece indent_string,
                    google::protobuf::io::CodedOutputStream* out)
       : element_(new Element(NULL)),
-        stream_(out), sink_(out),
-        indent_string_(indent_string.ToString()) {
-  }
+        stream_(out),
+        sink_(out),
+        indent_string_(indent_string.ToString()),
+        use_websafe_base64_for_bytes_(false) {}
   virtual ~JsonObjectWriter();
 
   // ObjectWriter methods.
@@ -111,6 +112,10 @@ class LIBPROTOBUF_EXPORT JsonObjectWriter : public StructuredObjectWriter {
   virtual JsonObjectWriter* RenderBytes(StringPiece name, StringPiece value);
   virtual JsonObjectWriter* RenderNull(StringPiece name);
 
+  void set_use_websafe_base64_for_bytes(bool value) {
+    use_websafe_base64_for_bytes_ = value;
+  }
+
  protected:
   class LIBPROTOBUF_EXPORT Element : public BaseElement {
    public:
@@ -195,6 +200,10 @@ class LIBPROTOBUF_EXPORT JsonObjectWriter : public StructuredObjectWriter {
   ByteSinkWrapper sink_;
   const string indent_string_;
 
+  // Whether to use regular or websafe base64 encoding for byte fields. Defaults
+  // to regular base64 encoding.
+  bool use_websafe_base64_for_bytes_;
+
   GOOGLE_DISALLOW_IMPLICIT_CONSTRUCTORS(JsonObjectWriter);
 };