Move c/b/google_apis to google_apis/drive.

chrome/browser/google_apis/base_requests.h

Index: chrome/browser/google_apis/base_requests.h
diff --git a/chrome/browser/google_apis/base_requests.h b/chrome/browser/google_apis/base_requests.h
deleted file mode 100644
index cc9babd0e6575ba4fce8fdf86a3d463dbb292325..0000000000000000000000000000000000000000
--- a/chrome/browser/google_apis/base_requests.h
+++ /dev/null
@@ -1,536 +0,0 @@
-// 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.
-//
-// This file provides base classes used to issue HTTP requests for Google
-// APIs.
-
-#ifndef CHROME_BROWSER_GOOGLE_APIS_BASE_REQUESTS_H_
-#define CHROME_BROWSER_GOOGLE_APIS_BASE_REQUESTS_H_
-
-#include <string>
-#include <vector>
-
-#include "base/callback.h"
-#include "base/files/file_path.h"
-#include "base/memory/weak_ptr.h"
-#include "base/threading/thread_checker.h"
-#include "chrome/browser/google_apis/gdata_errorcode.h"
-#include "net/url_request/url_fetcher.h"
-#include "net/url_request/url_fetcher_delegate.h"
-#include "net/url_request/url_fetcher_response_writer.h"
-#include "url/gurl.h"
-
-namespace base {
-class Value;
-}  // namespace base
-
-namespace google_apis {
-
-class RequestSender;
-
-// Callback used to pass parsed JSON from ParseJson(). If parsing error occurs,
-// then the passed argument is null.
-typedef base::Callback<void(scoped_ptr<base::Value> value)> ParseJsonCallback;
-
-// Callback used for DownloadFileRequest and ResumeUploadRequestBase.
-typedef base::Callback<void(int64 progress, int64 total)> ProgressCallback;
-
-// Callback used to get the content from DownloadFileRequest.
-typedef base::Callback<void(
-    GDataErrorCode error,
-    scoped_ptr<std::string> content)> GetContentCallback;
-
-// Parses JSON passed in |json| on |blocking_task_runner|. Runs |callback| on
-// the calling thread when finished with either success or failure.
-// The callback must not be null.
-void ParseJson(base::TaskRunner* blocking_task_runner,
-               const std::string& json,
-               const ParseJsonCallback& callback);
-
-//======================= AuthenticatedRequestInterface ======================
-
-// An interface class for implementing a request which requires OAuth2
-// authentication.
-class AuthenticatedRequestInterface {
- public:
-  // Called when re-authentication is required. See Start() for details.
-  typedef base::Callback<void(AuthenticatedRequestInterface* request)>
-      ReAuthenticateCallback;
-
-  virtual ~AuthenticatedRequestInterface() {}
-
-  // Starts the request with |access_token|. User-Agent header will be set
-  // to |custom_user_agent| if the value is not empty.
-  //
-  // |callback| is called when re-authentication is needed for a certain
-  // number of times (see kMaxReAuthenticateAttemptsPerRequest in .cc).
-  // The callback should retry by calling Start() again with a new access
-  // token, or just call OnAuthFailed() if a retry is not attempted.
-  // |callback| must not be null.
-  virtual void Start(const std::string& access_token,
-                     const std::string& custom_user_agent,
-                     const ReAuthenticateCallback& callback) = 0;
-
-  // Invoked when the authentication failed with an error code |code|.
-  virtual void OnAuthFailed(GDataErrorCode code) = 0;
-
-  // Gets a weak pointer to this request object. Since requests may be
-  // deleted when it is canceled by user action, for posting asynchronous tasks
-  // on the authentication request object, weak pointers have to be used.
-  // TODO(kinaba): crbug.com/134814 use more clean life time management than
-  // using weak pointers.
-  virtual base::WeakPtr<AuthenticatedRequestInterface> GetWeakPtr() = 0;
-
-  // Cancels the request. It will invoke the callback object passed in
-  // each request's constructor with error code GDATA_CANCELLED.
-  virtual void Cancel() = 0;
-};
-
-//=========================== ResponseWriter ==================================
-
-// Saves the response for the request to a file or string.
-class ResponseWriter : public net::URLFetcherResponseWriter {
- public:
-  // If file_path is not empty, the response will be saved with file_writer_,
-  // otherwise it will be saved to data_.
-  ResponseWriter(net::URLFetcher* url_fetcher,
-                 base::SequencedTaskRunner* file_task_runner,
-                 const base::FilePath& file_path,
-                 const GetContentCallback& get_content_callback);
-  virtual ~ResponseWriter();
-
-  const std::string& data() const { return data_; }
-
-  // Disowns the output file.
-  void DisownFile();
-
-  // URLFetcherResponseWriter overrides:
-  virtual int Initialize(const net::CompletionCallback& callback) OVERRIDE;
-  virtual int Write(net::IOBuffer* buffer,
-                    int num_bytes,
-                    const net::CompletionCallback& callback) OVERRIDE;
-  virtual int Finish(const net::CompletionCallback& callback) OVERRIDE;
-
- private:
-  net::URLFetcher* url_fetcher_;
-  const GetContentCallback get_content_callback_;
-  std::string data_;
-  scoped_ptr<net::URLFetcherFileWriter> file_writer_;
-
-  DISALLOW_COPY_AND_ASSIGN(ResponseWriter);
-};
-
-//============================ UrlFetchRequestBase ===========================
-
-// Base class for requests that are fetching URLs.
-class UrlFetchRequestBase : public AuthenticatedRequestInterface,
-                            public net::URLFetcherDelegate {
- public:
-  // AuthenticatedRequestInterface overrides.
-  virtual void Start(const std::string& access_token,
-                     const std::string& custom_user_agent,
-                     const ReAuthenticateCallback& callback) OVERRIDE;
-  virtual base::WeakPtr<AuthenticatedRequestInterface> GetWeakPtr() OVERRIDE;
-  virtual void Cancel() OVERRIDE;
-
- protected:
-  explicit UrlFetchRequestBase(RequestSender* sender);
-  virtual ~UrlFetchRequestBase();
-
-  // Gets URL for the request.
-  virtual GURL GetURL() const = 0;
-
-  // Returns the request type. A derived class should override this method
-  // for a request type other than HTTP GET.
-  virtual net::URLFetcher::RequestType GetRequestType() const;
-
-  // Returns the extra HTTP headers for the request. A derived class should
-  // override this method to specify any extra headers needed for the request.
-  virtual std::vector<std::string> GetExtraRequestHeaders() const;
-
-  // Used by a derived class to add any content data to the request.
-  // Returns true if |upload_content_type| and |upload_content| are updated
-  // with the content type and data for the request.
-  // Note that this and GetContentFile() cannot be used together.
-  virtual bool GetContentData(std::string* upload_content_type,
-                              std::string* upload_content);
-
-  // Used by a derived class to add content data which is the whole file or
-  // a part of the file at |local_file_path|.
-  // Returns true if all the arguments are updated for the content being
-  // uploaded.
-  // Note that this and GetContentData() cannot be used together.
-  virtual bool GetContentFile(base::FilePath* local_file_path,
-                              int64* range_offset,
-                              int64* range_length,
-                              std::string* upload_content_type);
-
-  // Used by a derived class to set an output file path if they want to save
-  // the downloaded content to a file at a specific path.
-  // Sets |get_content_callback|, which is called when some part of the response
-  // is read.
-  virtual void GetOutputFilePath(base::FilePath* local_file_path,
-                                 GetContentCallback* get_content_callback);
-
-  // Invoked by OnURLFetchComplete when the request completes without an
-  // authentication error. Must be implemented by a derived class.
-  virtual void ProcessURLFetchResults(const net::URLFetcher* source) = 0;
-
-  // Invoked by this base class upon an authentication error or cancel by
-  // a user request. Must be implemented by a derived class.
-  virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) = 0;
-
-  // Invoked from derived classes when ProcessURLFetchResults() is completed.
-  void OnProcessURLFetchResultsComplete();
-
-  // Returns an appropriate GDataErrorCode based on the HTTP response code and
-  // the status of the URLFetcher.
-  GDataErrorCode GetErrorCode();
-
-  // Returns true if called on the thread where the constructor was called.
-  bool CalledOnValidThread();
-
-  // Returns the writer which is used to save the response for the request.
-  ResponseWriter* response_writer() const { return response_writer_; }
-
-  // Returns the task runner that should be used for blocking tasks.
-  base::SequencedTaskRunner* blocking_task_runner() const;
-
- private:
-  // URLFetcherDelegate overrides.
-  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
-
-  // AuthenticatedRequestInterface overrides.
-  virtual void OnAuthFailed(GDataErrorCode code) OVERRIDE;
-
-  ReAuthenticateCallback re_authenticate_callback_;
-  int re_authenticate_count_;
-  scoped_ptr<net::URLFetcher> url_fetcher_;
-  ResponseWriter* response_writer_;  // Owned by |url_fetcher_|.
-  RequestSender* sender_;
-  GDataErrorCode error_code_;
-
-  base::ThreadChecker thread_checker_;
-
-  // Note: This should remain the last member so it'll be destroyed and
-  // invalidate its weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<UrlFetchRequestBase> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(UrlFetchRequestBase);
-};
-
-//============================ EntryActionRequest ============================
-
-// Callback type for requests that return only error status, like: Delete/Move.
-typedef base::Callback<void(GDataErrorCode error)> EntryActionCallback;
-
-// This class performs a simple action over a given entry (document/file).
-// It is meant to be used for requests that return no JSON blobs.
-class EntryActionRequest : public UrlFetchRequestBase {
- public:
-  // |callback| is called when the request is finished either by success or by
-  // failure. It must not be null.
-  EntryActionRequest(RequestSender* sender,
-                     const EntryActionCallback& callback);
-  virtual ~EntryActionRequest();
-
- protected:
-  // Overridden from UrlFetchRequestBase.
-  virtual void ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
-  virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
-
- private:
-  const EntryActionCallback callback_;
-
-  DISALLOW_COPY_AND_ASSIGN(EntryActionRequest);
-};
-
-//============================== GetDataRequest ==============================
-
-// Callback type for requests that returns JSON data.
-typedef base::Callback<void(GDataErrorCode error,
-                            scoped_ptr<base::Value> json_data)> GetDataCallback;
-
-// This class performs the request for fetching and converting the fetched
-// content into a base::Value.
-class GetDataRequest : public UrlFetchRequestBase {
- public:
-  // |callback| is called when the request finishes either by success or by
-  // failure. On success, a JSON Value object is passed. It must not be null.
-  GetDataRequest(RequestSender* sender, const GetDataCallback& callback);
-  virtual ~GetDataRequest();
-
- protected:
-  // UrlFetchRequestBase overrides.
-  virtual void ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
-  virtual void RunCallbackOnPrematureFailure(
-      GDataErrorCode fetch_error_code) OVERRIDE;
-
- private:
-  // Parses JSON response.
-  void ParseResponse(GDataErrorCode fetch_error_code, const std::string& data);
-
-  // Called when ParseJsonOnBlockingPool() is completed.
-  void OnDataParsed(GDataErrorCode fetch_error_code,
-                    scoped_ptr<base::Value> value);
-
-  const GetDataCallback callback_;
-
-  // Note: This should remain the last member so it'll be destroyed and
-  // invalidate its weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<GetDataRequest> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(GetDataRequest);
-};
-
-
-//=========================== InitiateUploadRequestBase=======================
-
-// Callback type for DriveServiceInterface::InitiateUpload.
-typedef base::Callback<void(GDataErrorCode error,
-                            const GURL& upload_url)> InitiateUploadCallback;
-
-// This class provides base implementation for performing the request for
-// initiating the upload of a file.
-// |callback| will be called with the obtained upload URL. The URL will be
-// used with requests for resuming the file uploading.
-//
-// Here's the flow of uploading:
-// 1) Get the upload URL with a class inheriting InitiateUploadRequestBase.
-// 2) Upload the first 1GB (see kUploadChunkSize in drive_uploader.cc)
-//    of the target file to the upload URL
-// 3) If there is more data to upload, go to 2).
-//
-class InitiateUploadRequestBase : public UrlFetchRequestBase {
- protected:
-  // |callback| will be called with the upload URL, where upload data is
-  // uploaded to with ResumeUploadRequestBase. It must not be null.
-  // |content_type| and |content_length| should be the attributes of the
-  // uploading file.
-  InitiateUploadRequestBase(RequestSender* sender,
-                            const InitiateUploadCallback& callback,
-                            const std::string& content_type,
-                            int64 content_length);
-  virtual ~InitiateUploadRequestBase();
-
-  // UrlFetchRequestBase overrides.
-  virtual void ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
-  virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
-  virtual std::vector<std::string> GetExtraRequestHeaders() const OVERRIDE;
-
- private:
-  const InitiateUploadCallback callback_;
-  const std::string content_type_;
-  const int64 content_length_;
-
-  DISALLOW_COPY_AND_ASSIGN(InitiateUploadRequestBase);
-};
-
-//========================== UploadRangeRequestBase ==========================
-
-// Struct for response to ResumeUpload and GetUploadStatus.
-struct UploadRangeResponse {
-  UploadRangeResponse();
-  UploadRangeResponse(GDataErrorCode code,
-                      int64 start_position_received,
-                      int64 end_position_received);
-  ~UploadRangeResponse();
-
-  GDataErrorCode code;
-  // The values of "Range" header returned from the server. The values are
-  // used to continue uploading more data. These are set to -1 if an upload
-  // is complete.
-  // |start_position_received| is inclusive and |end_position_received| is
-  // exclusive to follow the common C++ manner, although the response from
-  // the server has "Range" header in inclusive format at both sides.
-  int64 start_position_received;
-  int64 end_position_received;
-};
-
-// Base class for a URL fetch request expecting the response containing the
-// current uploading range. This class processes the response containing
-// "Range" header and invoke OnRangeRequestComplete.
-class UploadRangeRequestBase : public UrlFetchRequestBase {
- protected:
-  // |upload_url| is the URL of where to upload the file to.
-  UploadRangeRequestBase(RequestSender* sender, const GURL& upload_url);
-  virtual ~UploadRangeRequestBase();
-
-  // UrlFetchRequestBase overrides.
-  virtual GURL GetURL() const OVERRIDE;
-  virtual net::URLFetcher::RequestType GetRequestType() const OVERRIDE;
-  virtual void ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
-  virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
-
-  // This method will be called when the request is done, regardless of
-  // whether it is succeeded or failed.
-  //
-  // 1) If there is more data to upload, |code| of |response| is set to
-  // HTTP_RESUME_INCOMPLETE, and positions are set appropriately. Also, |value|
-  // will be set to NULL.
-  // 2) If the upload is complete, |code| is set to HTTP_CREATED for a new file
-  // or HTTP_SUCCESS for an existing file. Positions are set to -1, and |value|
-  // is set to a parsed JSON value representing the uploaded file.
-  // 3) If a premature failure is found, |code| is set to a value representing
-  // the situation. Positions are set to 0, and |value| is set to NULL.
-  //
-  // See also the comments for UploadRangeResponse.
-  // Note: Subclasses should have responsibility to run some callback
-  // in this method to notify the finish status to its clients (or ignore it
-  // under its responsibility).
-  virtual void OnRangeRequestComplete(
-      const UploadRangeResponse& response, scoped_ptr<base::Value> value) = 0;
-
- private:
-  // Called when ParseJson() is completed.
-  void OnDataParsed(GDataErrorCode code, scoped_ptr<base::Value> value);
-
-  const GURL upload_url_;
-
-  // Note: This should remain the last member so it'll be destroyed and
-  // invalidate its weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<UploadRangeRequestBase> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(UploadRangeRequestBase);
-};
-
-//========================== ResumeUploadRequestBase =========================
-
-// This class performs the request for resuming the upload of a file.
-// More specifically, this request uploads a chunk of data carried in |buf|
-// of ResumeUploadResponseBase. This class is designed to share the
-// implementation of upload resuming between GData WAPI and Drive API v2.
-// The subclasses should implement OnRangeRequestComplete inherited by
-// UploadRangeRequestBase, because the type of the response should be
-// different (although the format in the server response is JSON).
-class ResumeUploadRequestBase : public UploadRangeRequestBase {
- protected:
-  // |start_position| is the start of range of contents currently stored in
-  // |buf|. |end_position| is the end of range of contents currently stared in
-  // |buf|. This is exclusive. For instance, if you are to upload the first
-  // 500 bytes of data, |start_position| is 0 and |end_position| is 500.
-  // |content_length| and |content_type| are the length and type of the
-  // file content to be uploaded respectively.
-  // |buf| holds current content to be uploaded.
-  // See also UploadRangeRequestBase's comment for remaining parameters
-  // meaning.
-  ResumeUploadRequestBase(RequestSender* sender,
-                          const GURL& upload_location,
-                          int64 start_position,
-                          int64 end_position,
-                          int64 content_length,
-                          const std::string& content_type,
-                          const base::FilePath& local_file_path);
-  virtual ~ResumeUploadRequestBase();
-
-  // UrlFetchRequestBase overrides.
-  virtual std::vector<std::string> GetExtraRequestHeaders() const OVERRIDE;
-  virtual bool GetContentFile(base::FilePath* local_file_path,
-                              int64* range_offset,
-                              int64* range_length,
-                              std::string* upload_content_type) OVERRIDE;
-
- private:
-  // The parameters for the request. See ResumeUploadParams for the details.
-  const int64 start_position_;
-  const int64 end_position_;
-  const int64 content_length_;
-  const std::string content_type_;
-  const base::FilePath local_file_path_;
-
-  DISALLOW_COPY_AND_ASSIGN(ResumeUploadRequestBase);
-};
-
-//======================== GetUploadStatusRequestBase ========================
-
-// This class performs the request for getting the current upload status
-// of a file.
-// This request calls OnRangeRequestComplete() with:
-// - HTTP_RESUME_INCOMPLETE and the range of previously uploaded data,
-//   if a file has been partially uploaded. |value| is not used.
-// - HTTP_SUCCESS or HTTP_CREATED (up to the upload mode) and |value|
-//   for the uploaded data, if a file has been completely uploaded.
-// See also UploadRangeRequestBase.
-class GetUploadStatusRequestBase : public UploadRangeRequestBase {
- public:
-  // |content_length| is the whole data size to be uploaded.
-  // See also UploadRangeRequestBase's constructor comment for other
-  // parameters.
-  GetUploadStatusRequestBase(RequestSender* sender,
-                             const GURL& upload_url,
-                             int64 content_length);
-  virtual ~GetUploadStatusRequestBase();
-
- protected:
-  // UrlFetchRequestBase overrides.
-  virtual std::vector<std::string> GetExtraRequestHeaders() const OVERRIDE;
-
- private:
-  const int64 content_length_;
-
-  DISALLOW_COPY_AND_ASSIGN(GetUploadStatusRequestBase);
-};
-
-//============================ DownloadFileRequest ===========================
-
-// Callback type for receiving the completion of DownloadFileRequest.
-typedef base::Callback<void(GDataErrorCode error,
-                            const base::FilePath& temp_file)>
-    DownloadActionCallback;
-
-// This is a base class for performing the request for downloading a file.
-class DownloadFileRequestBase : public UrlFetchRequestBase {
- public:
-  // download_action_callback:
-  //   This callback is called when the download is complete. Must not be null.
-  //
-  // get_content_callback:
-  //   This callback is called when some part of the content is
-  //   read. Used to read the download content progressively. May be null.
-  //
-  // progress_callback:
-  //   This callback is called for periodically reporting the number of bytes
-  //   downloaded so far. May be null.
-  //
-  // download_url:
-  //   Specifies the target file to download.
-  //
-  // output_file_path:
-  //   Specifies the file path to save the downloaded file.
-  //
-  DownloadFileRequestBase(
-      RequestSender* sender,
-      const DownloadActionCallback& download_action_callback,
-      const GetContentCallback& get_content_callback,
-      const ProgressCallback& progress_callback,
-      const GURL& download_url,
-      const base::FilePath& output_file_path);
-  virtual ~DownloadFileRequestBase();
-
- protected:
-  // UrlFetchRequestBase overrides.
-  virtual GURL GetURL() const OVERRIDE;
-  virtual void GetOutputFilePath(
-      base::FilePath* local_file_path,
-      GetContentCallback* get_content_callback) OVERRIDE;
-  virtual void ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
-  virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
-
-  // net::URLFetcherDelegate overrides.
-  virtual void OnURLFetchDownloadProgress(const net::URLFetcher* source,
-                                          int64 current, int64 total) OVERRIDE;
-
- private:
-  const DownloadActionCallback download_action_callback_;
-  const GetContentCallback get_content_callback_;
-  const ProgressCallback progress_callback_;
-  const GURL download_url_;
-  const base::FilePath output_file_path_;
-
-  DISALLOW_COPY_AND_ASSIGN(DownloadFileRequestBase);
-};
-
-}  // namespace google_apis
-
-#endif  // CHROME_BROWSER_GOOGLE_APIS_BASE_REQUESTS_H_