Parse content in the response for upload iff the upload is successfully done.

chrome/browser/google_apis/base_requests.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/base_requests.h"
 
 #include "base/json/json_reader.h"
 #include "base/location.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
@@ skipping 472 matching lines @@
     // The Range header has the received data range, so the start position
     // should be always 0.
     DCHECK_EQ(start_position_received, 0);
 
     OnRangeRequestComplete(UploadRangeResponse(code,
                                                start_position_received,
                                                end_position_received),
                            scoped_ptr<base::Value>());
 
     OnProcessURLFetchResultsComplete(true);
-  } else {
-    // There might be explanation of unexpected error code in response.
+  } else if (code == HTTP_CREATED || code == HTTP_SUCCESS) {
+    // The upload is successfully done. Parse the response which should be
+    // the entry's metadata.
     std::string response_content;
     source->GetResponseAsString(&response_content);
 
     ParseJson(blocking_task_runner(),
               response_content,
               base::Bind(&UploadRangeRequestBase::OnDataParsed,
                          weak_ptr_factory_.GetWeakPtr(),
                          code));
+  } else {
+    // Failed to upload. Run callbacks to notify the error.
+    OnRangeRequestComplete(
+        UploadRangeResponse(code, -1, -1), scoped_ptr<base::Value>());
+    OnProcessURLFetchResultsComplete(false);
   }
 }
 
 void UploadRangeRequestBase::OnDataParsed(GDataErrorCode code,
                                           scoped_ptr<base::Value> value) {
   DCHECK(CalledOnValidThread());
+  DCHECK(code == HTTP_CREATED || code == HTTP_SUCCESS);
 
   OnRangeRequestComplete(UploadRangeResponse(code, -1, -1), value.Pass());
-  OnProcessURLFetchResultsComplete(
-      code == HTTP_CREATED || code == HTTP_SUCCESS);
+  OnProcessURLFetchResultsComplete(true);
 }
 
 void UploadRangeRequestBase::RunCallbackOnPrematureFailure(
     GDataErrorCode code) {
   OnRangeRequestComplete(
       UploadRangeResponse(code, 0, 0), scoped_ptr<base::Value>());
 }
 
 //========================== ResumeUploadRequestBase =========================
 
@@ skipping 152 matching lines @@
   download_action_callback_.Run(code, temp_file);
   OnProcessURLFetchResultsComplete(code == HTTP_SUCCESS);
 }
 
 void DownloadFileRequestBase::RunCallbackOnPrematureFailure(
     GDataErrorCode code) {
   download_action_callback_.Run(code, base::FilePath());
 }
 
 }  // namespace google_apis