Import grpcio-sys 0.6.0

And add metadata files using the following command:
get_rust_pkg.py --add3prf -v grpcio-sys-0.6.0 -o grpcio-sys

Use LICENSE file from parent grpcio crate. Add README.android
as requested during security review.

Test: None
Change-Id: Ib5f5c2af6f51d50c536cc4b6979666d480a57041
diff --git a/grpc/gRPC-ProtoRPC.podspec b/grpc/gRPC-ProtoRPC.podspec
new file mode 100644
index 0000000..3dc0e9b
--- /dev/null
+++ b/grpc/gRPC-ProtoRPC.podspec
@@ -0,0 +1,88 @@
+# This file has been automatically generated from a template file.
+# Please make modifications to
+# `templates/gRPC-ProtoRPC.podspec.template` instead. This file can be
+# regenerated from the template by running
+# `tools/buildgen/generate_projects.sh`.
+
+# Copyright 2015 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+Pod::Spec.new do |s|
+  s.name     = 'gRPC-ProtoRPC'
+  version = '1.29.1'
+  s.version  = version
+  s.summary  = 'RPC library for Protocol Buffers, based on gRPC'
+  s.homepage = 'https://grpc.io'
+  s.license  = 'Apache License, Version 2.0'
+  s.authors  = { 'The gRPC contributors' => 'grpc-packages@google.com' }
+
+  s.source = {
+    :git => 'https://github.com/grpc/grpc.git',
+    :tag => "v#{version}",
+  }
+
+  s.ios.deployment_target = '7.0'
+  s.osx.deployment_target = '10.9'
+  s.tvos.deployment_target = '10.0'
+  s.watchos.deployment_target = '4.0'
+
+  name = 'ProtoRPC'
+  s.module_name = name
+  s.header_dir = name
+
+  s.default_subspec = 'Main', 'Legacy', 'Legacy-Header'
+
+  s.subspec 'Legacy-Header' do |ss|
+    ss.header_mappings_dir = "src/objective-c/ProtoRPC"
+    ss.public_header_files = "src/objective-c/ProtoRPC/ProtoRPCLegacy.h"
+    ss.source_files = "src/objective-c/ProtoRPC/ProtoRPCLegacy.h"
+  end
+
+  s.subspec 'Main' do |ss|
+    ss.header_mappings_dir = "src/objective-c/ProtoRPC"
+    ss.dependency "#{s.name}/Legacy-Header", version
+    ss.dependency 'gRPC/Interface', version
+    ss.dependency 'Protobuf', '~> 3.0'
+
+    ss.source_files = "src/objective-c/ProtoRPC/ProtoMethod.{h,m}",
+                      "src/objective-c/ProtoRPC/ProtoRPC.{h,m}",
+                      "src/objective-c/ProtoRPC/ProtoService.{h,m}"
+  end
+
+  s.subspec 'Legacy' do |ss|
+    ss.header_mappings_dir = "src/objective-c/ProtoRPC"
+    ss.dependency "#{s.name}/Main", version
+    ss.dependency "#{s.name}/Legacy-Header", version
+    ss.dependency 'gRPC/GRPCCore', version
+    ss.dependency 'gRPC-RxLibrary', version
+    ss.dependency 'Protobuf', '~> 3.0'
+
+    ss.source_files = "src/objective-c/ProtoRPC/ProtoRPCLegacy.m",
+                      "src/objective-c/ProtoRPC/ProtoServiceLegacy.m"
+  end
+
+  # CFStream is now default. Leaving this subspec only for compatibility purpose.
+  s.subspec 'CFStream' do |ss|
+    ss.dependency "#{s.name}/Legacy", version
+  end
+
+  s.pod_target_xcconfig = {
+    # This is needed by all pods that depend on Protobuf:
+    'GCC_PREPROCESSOR_DEFINITIONS' => '$(inherited) GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS=1',
+    # This is needed by all pods that depend on gRPC-RxLibrary:
+    'CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES' => 'YES',
+    'CLANG_WARN_STRICT_PROTOTYPES' => 'NO',
+  }
+end