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Side by Side Diff: content/browser/blob_storage/blob_url_loader_factory.h

Issue 2906543002: Add support for reading blobs when using the network service. (Closed)
Patch Set: fix threading issue with weakptr Created 3 years, 6 months ago
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1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef CONTENT_BROWSER_BLOB_STORAGE_BLOB_URL_LOADER_FACTORY_H_
6 #define CONTENT_BROWSER_BLOB_STORAGE_BLOB_URL_LOADER_FACTORY_H_
7
8 #include "base/callback.h"
9 #include "base/macros.h"
10 #include "base/memory/ref_counted.h"
11 #include "content/common/content_export.h"
12 #include "content/common/url_loader_factory.mojom.h"
13 #include "content/public/browser/browser_thread.h"
14 #include "mojo/public/cpp/bindings/binding_set.h"
15
16 namespace storage {
17 class BlobStorageContext;
18 class FileSystemContext;
19 }
20
21 namespace content {
22
23 // A class for creating URLLoaderFactory for blob scheme.
24 // There should be one owned per StoragePartition.
25 class BlobURLLoaderFactory
26 : public base::RefCountedThreadSafe<BlobURLLoaderFactory,
27 BrowserThread::DeleteOnIOThread>,
28 public mojom::URLLoaderFactory {
29 public:
30 using BlobContextGetter =
31 base::OnceCallback<base::WeakPtr<storage::BlobStorageContext>()>;
32 CONTENT_EXPORT BlobURLLoaderFactory(
33 BlobContextGetter blob_storage_context_getter,
34 scoped_refptr<storage::FileSystemContext> file_system_context);
35
36 // Creates a URLLoaderFactory interface pointer for serving blob requests.
37 // Called on the UI thread.
38 mojom::URLLoaderFactoryPtr CreateFactory();
39
40 // mojom::URLLoaderFactory implementation:
41 void CreateLoaderAndStart(mojom::URLLoaderAssociatedRequest loader,
42 int32_t routing_id,
43 int32_t request_id,
44 uint32_t options,
45 const ResourceRequest& request,
46 mojom::URLLoaderClientPtr client) override;
47 void SyncLoad(int32_t routing_id,
48 int32_t request_id,
49 const ResourceRequest& request,
50 SyncLoadCallback callback) override;
51
52 private:
53 friend class base::DeleteHelper<BlobURLLoaderFactory>;
54 friend struct BrowserThread::DeleteOnThread<BrowserThread::IO>;
55
56 ~BlobURLLoaderFactory() override;
57
58 void InitializeOnIO(BlobContextGetter blob_storage_context_getter);
59 void BindOnIO(mojom::URLLoaderFactoryRequest request);
60
61 base::WeakPtr<storage::BlobStorageContext> blob_storage_context_;
62 scoped_refptr<storage::FileSystemContext> file_system_context_;
63
64 // Used on the IO thread.
65 mojo::BindingSet<mojom::URLLoaderFactory> loader_factory_bindings_;
66
67 DISALLOW_COPY_AND_ASSIGN(BlobURLLoaderFactory);
68 };
69
70 } // namespace content
71
72 #endif // CONTENT_BROWSER_BLOB_STORAGE_BLOB_URL_LOADER_FACTORY_H_
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