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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_BROWSER_BROWSING_INSTANCE_H_ | 5 #ifndef CONTENT_BROWSER_BROWSING_INSTANCE_H_ |
6 #define CONTENT_BROWSER_BROWSING_INSTANCE_H_ | 6 #define CONTENT_BROWSER_BROWSING_INSTANCE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/hash_tables.h" | 9 #include "base/hash_tables.h" |
10 #include "base/lazy_instance.h" | 10 #include "base/lazy_instance.h" |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "content/common/content_export.h" | 12 #include "content/common/content_export.h" |
13 #include "content/public/browser/browser_context.h" | |
Ami GONE FROM CHROMIUM
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This is needed to pick up the definition of hash<B
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13 | 14 |
14 class GURL; | 15 class GURL; |
15 class SiteInstance; | 16 class SiteInstance; |
16 | 17 |
17 namespace content { | |
18 class BrowserContext; | |
19 } | |
20 | |
21 /////////////////////////////////////////////////////////////////////////////// | 18 /////////////////////////////////////////////////////////////////////////////// |
22 // | 19 // |
23 // BrowsingInstance class | 20 // BrowsingInstance class |
24 // | 21 // |
25 // A browsing instance corresponds to the notion of a "unit of related browsing | 22 // A browsing instance corresponds to the notion of a "unit of related browsing |
26 // contexts" in the HTML 5 spec. Intuitively, it represents a collection of | 23 // contexts" in the HTML 5 spec. Intuitively, it represents a collection of |
27 // tabs and frames that can have script connections to each other. In that | 24 // tabs and frames that can have script connections to each other. In that |
28 // sense, it reflects the user interface, and not the contents of the tabs and | 25 // sense, it reflects the user interface, and not the contents of the tabs and |
29 // frames. | 26 // frames. |
30 // | 27 // |
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128 | 125 |
129 // Map of site to SiteInstance, to ensure we only have one SiteInstance per | 126 // Map of site to SiteInstance, to ensure we only have one SiteInstance per |
130 // site. The site string should be the possibly_invalid_spec() of a GURL | 127 // site. The site string should be the possibly_invalid_spec() of a GURL |
131 // obtained with SiteInstance::GetSiteForURL. Note that this map may not | 128 // obtained with SiteInstance::GetSiteForURL. Note that this map may not |
132 // contain every active SiteInstance, because a race exists where two | 129 // contain every active SiteInstance, because a race exists where two |
133 // SiteInstances can be assigned to the same site. This is ok in rare cases. | 130 // SiteInstances can be assigned to the same site. This is ok in rare cases. |
134 // This field is only used if we are not using process-per-site. | 131 // This field is only used if we are not using process-per-site. |
135 SiteInstanceMap site_instance_map_; | 132 SiteInstanceMap site_instance_map_; |
136 | 133 |
137 // Global map of BrowserContext to SiteInstanceMap, for process-per-site. | 134 // Global map of BrowserContext to SiteInstanceMap, for process-per-site. |
138 static base::LazyInstance< | 135 static base::LazyInstance<ContextSiteInstanceMap>::Leaky |
139 ContextSiteInstanceMap, | 136 context_site_instance_map_; |
140 base::LeakyLazyInstanceTraits<ContextSiteInstanceMap> > | |
141 context_site_instance_map_; | |
142 | 137 |
143 DISALLOW_COPY_AND_ASSIGN(BrowsingInstance); | 138 DISALLOW_COPY_AND_ASSIGN(BrowsingInstance); |
144 }; | 139 }; |
145 | 140 |
146 #endif // CONTENT_BROWSER_BROWSING_INSTANCE_H_ | 141 #endif // CONTENT_BROWSER_BROWSING_INSTANCE_H_ |
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