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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_RENDERER_MEDIA_CACHE_UTIL_H_ | 5 #ifndef MEDIA_BLINK_CACHE_UTIL_H_ |
6 #define CONTENT_RENDERER_MEDIA_CACHE_UTIL_H_ | 6 #define MEDIA_BLINK_CACHE_UTIL_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "content/common/content_export.h" | 11 #include "media/base/media_export.h" |
12 | 12 |
13 namespace blink { | 13 namespace blink { |
14 class WebURLResponse; | 14 class WebURLResponse; |
15 } | 15 } |
16 | 16 |
17 namespace content { | 17 namespace media { |
18 | 18 |
19 // Reasons that a cached WebURLResponse will *not* prevent a future request to | 19 // Reasons that a cached WebURLResponse will *not* prevent a future request to |
20 // the server. Reported via UMA, so don't change/reuse previously-existing | 20 // the server. Reported via UMA, so don't change/reuse previously-existing |
21 // values. | 21 // values. |
22 enum UncacheableReason { | 22 enum UncacheableReason { |
23 kNoData = 1 << 0, // Not 200 or 206. | 23 kNoData = 1 << 0, // Not 200 or 206. |
24 kPre11PartialResponse = 1 << 1, // 206 but HTTP version < 1.1. | 24 kPre11PartialResponse = 1 << 1, // 206 but HTTP version < 1.1. |
25 kNoStrongValidatorOnPartialResponse = 1 << 2, // 206, no strong validator. | 25 kNoStrongValidatorOnPartialResponse = 1 << 2, // 206, no strong validator. |
26 kShortMaxAge = 1 << 3, // Max age less than 1h (arbitrary value). | 26 kShortMaxAge = 1 << 3, // Max age less than 1h (arbitrary value). |
27 kExpiresTooSoon = 1 << 4, // Expires in less than 1h (arbitrary value). | 27 kExpiresTooSoon = 1 << 4, // Expires in less than 1h (arbitrary value). |
28 kHasMustRevalidate = 1 << 5, // Response asks for revalidation. | 28 kHasMustRevalidate = 1 << 5, // Response asks for revalidation. |
29 kNoCache = 1 << 6, // Response included a no-cache header. | 29 kNoCache = 1 << 6, // Response included a no-cache header. |
30 kNoStore = 1 << 7, // Response included a no-store header. | 30 kNoStore = 1 << 7, // Response included a no-store header. |
31 kMaxReason // Needs to be one more than max legitimate reason. | 31 kMaxReason // Needs to be one more than max legitimate reason. |
32 }; | 32 }; |
33 | 33 |
34 // Return the logical OR of the reasons "response" cannot be used for a future | 34 // Return the logical OR of the reasons "response" cannot be used for a future |
35 // request (using the disk cache), or 0 if it might be useful. | 35 // request (using the disk cache), or 0 if it might be useful. |
36 uint32 CONTENT_EXPORT GetReasonsForUncacheability( | 36 uint32 MEDIA_EXPORT GetReasonsForUncacheability( |
37 const blink::WebURLResponse& response); | 37 const blink::WebURLResponse& response); |
38 | 38 |
39 } // namespace content | 39 } // namespace media |
40 | 40 |
41 #endif // CONTENT_RENDERER_MEDIA_CACHE_UTIL_H_ | 41 #endif // MEDIA_BLINK_CACHE_UTIL_H_ |
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