chromeos: Remove VirtualFileRequestServiceProvider::Delegate

Now that VirtualFileRequestServiceProvider lives in
//chrome/browser/chromeos/dbus, it no longer needs a
Delegate interface.

Bug: 843392
Change-Id: Iaafc3d7d79c6c39cca0e8de2febe31bad07efd6e
Reviewed-on: https://chromium-review.googlesource.com/1184159
Commit-Queue: Dan Erat <derat@chromium.org>
Reviewed-by: Ryo Hashimoto <hashimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585485}

chrome/browser/chromeos/BUILD.gn

@@ -597,8 +597,6 @@ source_set("chromeos") {
     "dbus/chrome_features_service_provider.h",
     "dbus/chrome_proxy_resolution_service_provider_delegate.cc",
     "dbus/chrome_proxy_resolution_service_provider_delegate.h",
-    "dbus/chrome_virtual_file_request_service_provider_delegate.cc",
-    "dbus/chrome_virtual_file_request_service_provider_delegate.h",
     "dbus/component_updater_service_provider.cc",
     "dbus/component_updater_service_provider.h",
     "dbus/drive_file_stream_service_provider.cc",

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

@@ -47,7 +47,6 @@
 #include "chrome/browser/chromeos/boot_times_recorder.h"
 #include "chrome/browser/chromeos/dbus/chrome_features_service_provider.h"
 #include "chrome/browser/chromeos/dbus/chrome_proxy_resolution_service_provider_delegate.h"
-#include "chrome/browser/chromeos/dbus/chrome_virtual_file_request_service_provider_delegate.h"
 #include "chrome/browser/chromeos/dbus/component_updater_service_provider.h"
 #include "chrome/browser/chromeos/dbus/drive_file_stream_service_provider.h"
 #include "chrome/browser/chromeos/dbus/kiosk_info_service_provider.h"
@@ -347,9 +346,7 @@ class DBusServices {
         kVirtualFileRequestServiceName,
         dbus::ObjectPath(kVirtualFileRequestServicePath),
         CrosDBusService::CreateServiceProviderList(
-            std::make_unique<VirtualFileRequestServiceProvider>(
-                std::make_unique<
-                    ChromeVirtualFileRequestServiceProviderDelegate>())));
+            std::make_unique<VirtualFileRequestServiceProvider>()));
 
     component_updater_service_ = CrosDBusService::Create(
         kComponentUpdaterServiceName,

chrome/browser/chromeos/dbus/chrome_virtual_file_request_service_provider_delegate.cc

-// Copyright 2017 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/chromeos/dbus/chrome_virtual_file_request_service_provider_delegate.h"
-
-#include "chrome/browser/chromeos/arc/arc_session_manager.h"
-#include "chrome/browser/chromeos/arc/fileapi/arc_file_system_bridge.h"
-#include "chrome/browser/profiles/profile.h"
-
-namespace chromeos {
-
-namespace {
-
-arc::ArcFileSystemBridge* GetArcFileSystemBridge() {
-  arc::ArcSessionManager* session_manager = arc::ArcSessionManager::Get();
-  if (!session_manager)
-    return nullptr;
-  Profile* profile = session_manager->profile();
-  if (!profile)
-    return nullptr;
-  return arc::ArcFileSystemBridge::GetForBrowserContext(profile);
-}
-
-}  // namespace
-
-ChromeVirtualFileRequestServiceProviderDelegate::
-    ChromeVirtualFileRequestServiceProviderDelegate() = default;
-
-ChromeVirtualFileRequestServiceProviderDelegate::
-    ~ChromeVirtualFileRequestServiceProviderDelegate() = default;
-
-bool ChromeVirtualFileRequestServiceProviderDelegate::HandleReadRequest(
-    const std::string& id,
-    int64_t offset,
-    int64_t size,
-    base::ScopedFD pipe_write_end) {
-  arc::ArcFileSystemBridge* bridge = GetArcFileSystemBridge();
-  if (!bridge)
-    return false;
-  return bridge->HandleReadRequest(id, offset, size, std::move(pipe_write_end));
-}
-
-bool ChromeVirtualFileRequestServiceProviderDelegate::HandleIdReleased(
-    const std::string& id) {
-  arc::ArcFileSystemBridge* bridge = GetArcFileSystemBridge();
-  if (!bridge)
-    return false;
-  return bridge->HandleIdReleased(id);
-}
-
-}  // namespace chromeos

chrome/browser/chromeos/dbus/chrome_virtual_file_request_service_provider_delegate.h

-// Copyright 2017 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.
-
-#ifndef CHROME_BROWSER_CHROMEOS_DBUS_CHROME_VIRTUAL_FILE_REQUEST_SERVICE_PROVIDER_DELEGATE_H_
-#define CHROME_BROWSER_CHROMEOS_DBUS_CHROME_VIRTUAL_FILE_REQUEST_SERVICE_PROVIDER_DELEGATE_H_
-
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/chromeos/dbus/virtual_file_request_service_provider.h"
-
-namespace chromeos {
-
-// Chrome's VirtualFileRequestServiceProvider::Delegate implementation.
-class ChromeVirtualFileRequestServiceProviderDelegate
-    : public VirtualFileRequestServiceProvider::Delegate {
- public:
-  ChromeVirtualFileRequestServiceProviderDelegate();
-  ~ChromeVirtualFileRequestServiceProviderDelegate() override;
-
-  // VirtualFileRequestServiceProvider::Delegate overrides:
-  bool HandleReadRequest(const std::string& id,
-                         int64_t offset,
-                         int64_t size,
-                         base::ScopedFD pipe_write_end) override;
-  bool HandleIdReleased(const std::string& id) override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ChromeVirtualFileRequestServiceProviderDelegate);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_DBUS_CHROME_VIRTUAL_FILE_REQUEST_SERVICE_PROVIDER_DELEGATE_H_

chrome/browser/chromeos/dbus/virtual_file_request_service_provider.cc

@@ -4,17 +4,37 @@
 
 #include "chrome/browser/chromeos/dbus/virtual_file_request_service_provider.h"
 
+#include <stdint.h>
+
+#include <memory>
+#include <string>
 #include <utility>
 
 #include "base/bind.h"
+#include "base/files/scoped_file.h"
+#include "chrome/browser/chromeos/arc/arc_session_manager.h"
+#include "chrome/browser/chromeos/arc/fileapi/arc_file_system_bridge.h"
+#include "chrome/browser/profiles/profile.h"
 #include "dbus/message.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
+namespace {
+
+arc::ArcFileSystemBridge* GetArcFileSystemBridge() {
+  arc::ArcSessionManager* session_manager = arc::ArcSessionManager::Get();
+  if (!session_manager)
+    return nullptr;
+  Profile* profile = session_manager->profile();
+  if (!profile)
+    return nullptr;
+  return arc::ArcFileSystemBridge::GetForBrowserContext(profile);
+}
 
-VirtualFileRequestServiceProvider::VirtualFileRequestServiceProvider(
-    std::unique_ptr<Delegate> delegate)
-    : delegate_(std::move(delegate)), weak_ptr_factory_(this) {}
+}  // namespace
+
+VirtualFileRequestServiceProvider::VirtualFileRequestServiceProvider()
+    : weak_ptr_factory_(this) {}
 
 VirtualFileRequestServiceProvider::~VirtualFileRequestServiceProvider() =
     default;
@@ -57,13 +77,15 @@ void VirtualFileRequestServiceProvider::HandleReadRequest(
         method_call, DBUS_ERROR_INVALID_ARGS, std::string()));
     return;
   }
-  if (!delegate_->HandleReadRequest(id, offset, size,
-                                    std::move(pipe_write_end))) {
+
+  arc::ArcFileSystemBridge* bridge = GetArcFileSystemBridge();
+  if (bridge &&
+      bridge->HandleReadRequest(id, offset, size, std::move(pipe_write_end))) {
+    response_sender.Run(dbus::Response::FromMethodCall(method_call));
+  } else {
     response_sender.Run(dbus::ErrorResponse::FromMethodCall(
         method_call, DBUS_ERROR_FAILED, std::string()));
-    return;
   }
-  response_sender.Run(dbus::Response::FromMethodCall(method_call));
 }
 
 void VirtualFileRequestServiceProvider::HandleIdReleased(
@@ -76,12 +98,14 @@ void VirtualFileRequestServiceProvider::HandleIdReleased(
         method_call, DBUS_ERROR_INVALID_ARGS, std::string()));
     return;
   }
-  if (!delegate_->HandleIdReleased(id)) {
+
+  arc::ArcFileSystemBridge* bridge = GetArcFileSystemBridge();
+  if (bridge && bridge->HandleIdReleased(id)) {
+    response_sender.Run(dbus::Response::FromMethodCall(method_call));
+  } else {
     response_sender.Run(dbus::ErrorResponse::FromMethodCall(
         method_call, DBUS_ERROR_FAILED, std::string()));
-    return;
   }
-  response_sender.Run(dbus::Response::FromMethodCall(method_call));
 }
 
 }  // namespace chromeos

chrome/browser/chromeos/dbus/virtual_file_request_service_provider.h

@@ -5,13 +5,6 @@
 #ifndef CHROME_BROWSER_CHROMEOS_DBUS_VIRTUAL_FILE_REQUEST_SERVICE_PROVIDER_H_
 #define CHROME_BROWSER_CHROMEOS_DBUS_VIRTUAL_FILE_REQUEST_SERVICE_PROVIDER_H_
 
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "base/files/scoped_file.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ -29,23 +22,7 @@ namespace chromeos {
 class VirtualFileRequestServiceProvider
     : public CrosDBusService::ServiceProviderInterface {
  public:
-  // TODO(derat): Move the delegate into this class.
-  class Delegate {
-   public:
-    virtual ~Delegate() {}
-
-    // Writes the requested data to the given pipe write end.
-    virtual bool HandleReadRequest(const std::string& id,
-                                   int64_t offset,
-                                   int64_t size,
-                                   base::ScopedFD pipe_write_end) = 0;
-
-    // Releases resources associated with the ID.
-    virtual bool HandleIdReleased(const std::string& id) = 0;
-  };
-
-  explicit VirtualFileRequestServiceProvider(
-      std::unique_ptr<Delegate> delegate);
+  VirtualFileRequestServiceProvider();
   ~VirtualFileRequestServiceProvider() override;
 
   // CrosDBusService::ServiceProviderInterface overrides:
@@ -58,8 +35,6 @@ class VirtualFileRequestServiceProvider
   void HandleIdReleased(dbus::MethodCall* method_call,
                         dbus::ExportedObject::ResponseSender response_sender);
 
-  std::unique_ptr<Delegate> delegate_;
-
   // Keep this last so that all weak pointers will be invalidated at the
   // beginning of destruction.
   base::WeakPtrFactory<VirtualFileRequestServiceProvider> weak_ptr_factory_;