Add a new protobuf message named Upload to upload build metrics.

A new protobuf message named Upload is defined to send build metrics
to the Android Build Server API after a build is completed. These
metrics are collected from googlers only, as described in
go/local-developers-metrics-wfh.

Bug: b/140638454
Test: m nothing
Change-Id: I5e49b5ace053913be2b75673cb1375f4cef37825

ui/metrics/upload_proto/upload.pb.go

@@ -0,0 +1,122 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: upload.proto
+
+package soong_metrics_upload_proto
+
+import (
+	fmt "fmt"
+	proto "github.com/golang/protobuf/proto"
+	math "math"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+type Upload struct {
+	// The timestamp in milliseconds that the build was created.
+	CreationTimestampMs *uint64 `protobuf:"varint,1,opt,name=creation_timestamp_ms,json=creationTimestampMs" json:"creation_timestamp_ms,omitempty"`
+	// The timestamp in milliseconds when the build was completed.
+	CompletionTimestampMs *uint64 `protobuf:"varint,2,opt,name=completion_timestamp_ms,json=completionTimestampMs" json:"completion_timestamp_ms,omitempty"`
+	// The branch name.
+	BranchName *string `protobuf:"bytes,3,opt,name=branch_name,json=branchName" json:"branch_name,omitempty"`
+	// The target name.
+	TargetName *string `protobuf:"bytes,4,opt,name=target_name,json=targetName" json:"target_name,omitempty"`
+	// A list of metrics filepaths to upload.
+	MetricsFiles         []string `protobuf:"bytes,5,rep,name=metrics_files,json=metricsFiles" json:"metrics_files,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Upload) Reset()         { *m = Upload{} }
+func (m *Upload) String() string { return proto.CompactTextString(m) }
+func (*Upload) ProtoMessage()    {}
+func (*Upload) Descriptor() ([]byte, []int) {
+	return fileDescriptor_91b94b655bd2a7e5, []int{0}
+}
+
+func (m *Upload) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Upload.Unmarshal(m, b)
+}
+func (m *Upload) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Upload.Marshal(b, m, deterministic)
+}
+func (m *Upload) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Upload.Merge(m, src)
+}
+func (m *Upload) XXX_Size() int {
+	return xxx_messageInfo_Upload.Size(m)
+}
+func (m *Upload) XXX_DiscardUnknown() {
+	xxx_messageInfo_Upload.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Upload proto.InternalMessageInfo
+
+func (m *Upload) GetCreationTimestampMs() uint64 {
+	if m != nil && m.CreationTimestampMs != nil {
+		return *m.CreationTimestampMs
+	}
+	return 0
+}
+
+func (m *Upload) GetCompletionTimestampMs() uint64 {
+	if m != nil && m.CompletionTimestampMs != nil {
+		return *m.CompletionTimestampMs
+	}
+	return 0
+}
+
+func (m *Upload) GetBranchName() string {
+	if m != nil && m.BranchName != nil {
+		return *m.BranchName
+	}
+	return ""
+}
+
+func (m *Upload) GetTargetName() string {
+	if m != nil && m.TargetName != nil {
+		return *m.TargetName
+	}
+	return ""
+}
+
+func (m *Upload) GetMetricsFiles() []string {
+	if m != nil {
+		return m.MetricsFiles
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Upload)(nil), "soong_metrics_upload.Upload")
+}
+
+func init() {
+	proto.RegisterFile("upload.proto", fileDescriptor_91b94b655bd2a7e5)
+}
+
+var fileDescriptor_91b94b655bd2a7e5 = []byte{
+	// 201 bytes of a gzipped FileDescriptorProto
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+}