Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/csharp/src/Google.Protobuf/Google.Protobuf.nuspec

Index: third_party/protobuf/csharp/src/Google.Protobuf/Google.Protobuf.nuspec
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf/Google.Protobuf.nuspec b/third_party/protobuf/csharp/src/Google.Protobuf/Google.Protobuf.nuspec
new file mode 100644
index 0000000000000000000000000000000000000000..90e3da3d0e5c09ebaa4a65948dcd56264238099a
--- /dev/null
+++ b/third_party/protobuf/csharp/src/Google.Protobuf/Google.Protobuf.nuspec
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package>
+  <metadata>
+    <id>Google.Protobuf</id>
+    <title>Google Protocol Buffers C#</title>
+    <summary>C# runtime library for Protocol Buffers - Google's data interchange format.</summary>
+    <description>See project site for more info.</description>
+    <version>3.0.0-beta3</version>
+    <authors>Google Inc.</authors>
+    <owners>protobuf-packages</owners>
+    <licenseUrl>https://github.com/google/protobuf/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://github.com/google/protobuf</projectUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <releaseNotes>C# proto3 support</releaseNotes>
+    <copyright>Copyright 2015, Google Inc.</copyright>
+    <tags>Protocol Buffers Binary Serialization Format Google proto proto3</tags>
+    <dependencies>
+      <!-- Dependencies for older, monolithic-assembly platforms -->
+      <group targetFramework="net45" />
+      <group targetFramework="wp8" />
+      <group targetFramework="win8" />
+      <group targetFramework="wpa81" />
+      <group targetFramework="xamarin.ios" />
+      <group targetFramework="monotouch" />
+      <group targetFramework="monoandroid" />
+      <!-- Dependencies for newer, more granular platforms (.NET Core etc) -->
+      <group targetFramework="dotnet">
+        <dependency id="System.Collections" version="4.0.0" />
+        <dependency id="System.Diagnostics.Debug" version="4.0.0" />
+        <dependency id="System.Globalization" version="4.0.0" />
+        <dependency id="System.IO" version="4.0.0" />
+        <dependency id="System.Linq" version="4.0.0" />
+        <dependency id="System.Linq.Expressions" version="4.0.0" />
+        <dependency id="System.ObjectModel" version="4.0.0" />
+        <dependency id="System.Reflection" version="4.0.0" />
+        <dependency id="System.Reflection.Extensions" version="4.0.0" />
+        <dependency id="System.Runtime" version="4.0.0" />
+        <dependency id="System.Runtime.Extensions" version="4.0.0" />
+        <dependency id="System.Text.Encoding" version="4.0.0" />
+        <dependency id="System.Text.RegularExpressions" version="4.0.0" />
+        <dependency id="System.Threading" version="4.0.0" />
+      </group>
+    </dependencies>
+  </metadata>
+  <files>
+    <file src="bin/ReleaseSigned/Google.Protobuf.dll" target="lib/portable-net45+netcore45+wpa81+wp8" />
+    <file src="bin/ReleaseSigned/Google.Protobuf.pdb" target="lib/portable-net45+netcore45+wpa81+wp8" />
+    <file src="bin/ReleaseSigned/Google.Protobuf.xml" target="lib/portable-net45+netcore45+wpa81+wp8" />
+    <file src="bin/ReleaseSigned/Google.Protobuf.dll" target="lib/dotnet" />
+    <file src="bin/ReleaseSigned/Google.Protobuf.pdb" target="lib/dotnet" />
+    <file src="bin/ReleaseSigned/Google.Protobuf.xml" target="lib/dotnet" />
+    <file src="**\*.cs" target="src" />
+  </files>
+</package>