Implement GetUploadStatusOperation on GData WAPI.

chrome/browser/google_apis/gdata_wapi_operations.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/google_apis/gdata_wapi_operations.h"
 
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "chrome/browser/google_apis/gdata_wapi_parser.h"
@@ skipping 767 matching lines @@
   *upload_content = std::string(buf_->data(), end_position_ - start_position_);
   return true;
 }
 
 void ResumeUploadOperation::OnURLFetchUploadProgress(
     const URLFetcher* source, int64 current, int64 total) {
   // Adjust the progress values according to the range currently uploaded.
   NotifyProgress(start_position_ + current, content_length_);
 }
 
+//========================== GetUploadStatusOperation ==========================
+
+GetUploadStatusOperation::GetUploadStatusOperation(
+    OperationRegistry* registry,
+    net::URLRequestContextGetter* url_request_context_getter,
+    const UploadRangeCallback& callback,
+    UploadMode upload_mode,
+    const FilePath& drive_file_path,
+    const GURL& upload_url,
+    int64 content_length)
+  : UploadRangeOperationBase(registry,
+                             url_request_context_getter,
+                             callback,
+                             upload_mode,
+                             drive_file_path,
+                             upload_url),
+    content_length_(content_length) {}
+
+GetUploadStatusOperation::~GetUploadStatusOperation() {}
+
+std::vector<std::string>
+GetUploadStatusOperation::GetExtraRequestHeaders() const {
+  // The header looks like
+  // Content-Range: bytes */<content_length>
+  // for example:
+  // Content-Range: bytes */13851821
+  // Use * for unknown/streaming content length, such as
+  // Content-Range: bytes */*
+  DCHECK_GE(content_length_, -1);
+
+  std::vector<std::string> headers;
+  headers.push_back(
+      std::string(kUploadContentRange) + "*/" +
+      (content_length_ == -1 ? "*" : base::Int64ToString(content_length_)));
+  return headers;
+}
+
 }  // namespace google_apis