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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 #include "content/browser/browsing_instance.h" | 5 #include "content/browser/browsing_instance.h" |
| 6 | 6 |
| 7 #include "base/command_line.h" | 7 #include "base/command_line.h" |
| 8 #include "base/logging.h" | 8 #include "base/logging.h" |
| 9 #include "content/browser/site_instance_impl.h" | 9 #include "content/browser/site_instance_impl.h" |
| 10 #include "content/public/browser/browser_context.h" | 10 #include "content/public/browser/browser_context.h" |
| 11 #include "content/public/browser/content_browser_client.h" | 11 #include "content/public/browser/content_browser_client.h" |
| 12 #include "content/public/common/content_switches.h" | 12 #include "content/public/common/content_switches.h" |
| 13 #include "content/public/common/url_constants.h" | 13 #include "content/public/common/url_constants.h" |
| 14 | 14 |
| 15 namespace content { | 15 namespace content { |
| 16 | 16 |
| 17 BrowsingInstance::BrowsingInstance(BrowserContext* browser_context) | 17 BrowsingInstance::BrowsingInstance(BrowserContext* browser_context) |
| 18 : browser_context_(browser_context) { | 18 : browser_context_(browser_context) { |
| 19 } | 19 } |
| 20 | 20 |
| 21 bool BrowsingInstance::HasSiteInstance(const GURL& url) { | 21 bool BrowsingInstance::HasSiteInstance(const GURL& url) { |
| 22 std::string site = | 22 std::string site = |
| 23 SiteInstanceImpl::GetSiteForURL(browser_context_, url) | 23 SiteInstanceImpl::GetSiteForURL(browser_context_, url) |
| 24 .possibly_invalid_spec(); | 24 .possibly_invalid_spec(); |
| 25 | 25 |
| 26 return site_instance_map_.find(site) != site_instance_map_.end(); | 26 return site_instance_map_.find(site) != site_instance_map_.end(); |
| 27 } | 27 } |
| 28 | 28 |
| 29 SiteInstance* BrowsingInstance::GetSiteInstanceForURL(const GURL& url) { | 29 SiteInstanceImpl* BrowsingInstance::GetSiteInstanceForURL(const GURL& url) { |
| 30 std::string site = | 30 std::string site = |
| 31 SiteInstanceImpl::GetSiteForURL(browser_context_, url) | 31 SiteInstanceImpl::GetSiteForURL(browser_context_, url) |
| 32 .possibly_invalid_spec(); | 32 .possibly_invalid_spec(); |
| 33 | 33 |
| 34 SiteInstanceMap::iterator i = site_instance_map_.find(site); | 34 SiteInstanceMap::iterator i = site_instance_map_.find(site); |
| 35 if (i != site_instance_map_.end()) | 35 if (i != site_instance_map_.end()) |
| 36 return i->second; | 36 return i->second; |
| 37 | 37 |
| 38 | 38 |
| 39 // No current SiteInstance for this site, so let's create one. | 39 // No current SiteInstance for this site, so let's create one. |
| 40 SiteInstanceImpl* instance = new SiteInstanceImpl(this); | 40 SiteInstanceImpl* instance = new SiteInstanceImpl(this); |
| 41 | 41 |
| 42 // Set the site of this new SiteInstance, which will register it with us. | 42 // Set the site of this new SiteInstance, which will register it with us. |
| 43 instance->SetSite(url); | 43 instance->SetSite(url); |
| 44 return instance; | 44 return instance; |
| 45 } | 45 } |
| 46 | 46 |
| 47 void BrowsingInstance::RegisterSiteInstance(SiteInstance* site_instance) { | 47 void BrowsingInstance::RegisterSiteInstance(SiteInstanceImpl* site_instance) { |
| 48 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)-> | 48 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)-> |
| 49 browsing_instance_ == this); | 49 browsing_instance_ == this); |
| 50 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite()); | 50 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite()); |
| 51 std::string site = site_instance->GetSiteURL().possibly_invalid_spec(); | 51 std::string site = site_instance->GetSiteURL().possibly_invalid_spec(); |
| 52 | 52 |
| 53 // Only register if we don't have a SiteInstance for this site already. | 53 // Only register if we don't have a SiteInstance for this site already. |
| 54 // It's possible to have two SiteInstances point to the same site if two | 54 // It's possible to have two SiteInstances point to the same site if two |
| 55 // tabs are navigated there at the same time. (We don't call SetSite or | 55 // tabs are navigated there at the same time. (We don't call SetSite or |
| 56 // register them until DidNavigate.) If there is a previously existing | 56 // register them until DidNavigate.) If there is a previously existing |
| 57 // SiteInstance for this site, we just won't register the new one. | 57 // SiteInstance for this site, we just won't register the new one. |
| 58 SiteInstanceMap::iterator i = site_instance_map_.find(site); | 58 SiteInstanceMap::iterator i = site_instance_map_.find(site); |
| 59 if (i == site_instance_map_.end()) { | 59 if (i == site_instance_map_.end()) { |
| 60 // Not previously registered, so register it. | 60 // Not previously registered, so register it. |
| 61 site_instance_map_[site] = site_instance; | 61 site_instance_map_[site] = site_instance; |
| 62 } | 62 } |
| 63 } | 63 } |
| 64 | 64 |
| 65 void BrowsingInstance::UnregisterSiteInstance(SiteInstance* site_instance) { | 65 void BrowsingInstance::UnregisterSiteInstance(SiteInstanceImpl* site_instance) { |
| 66 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)-> | 66 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)-> |
| 67 browsing_instance_ == this); | 67 browsing_instance_ == this); |
| 68 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite()); | 68 DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite()); |
| 69 std::string site = site_instance->GetSiteURL().possibly_invalid_spec(); | 69 std::string site = site_instance->GetSiteURL().possibly_invalid_spec(); |
| 70 | 70 |
| 71 // Only unregister the SiteInstance if it is the same one that is registered | 71 // Only unregister the SiteInstance if it is the same one that is registered |
| 72 // for the site. (It might have been an unregistered SiteInstance. See the | 72 // for the site. (It might have been an unregistered SiteInstance. See the |
| 73 // comments in RegisterSiteInstance.) | 73 // comments in RegisterSiteInstance.) |
| 74 SiteInstanceMap::iterator i = site_instance_map_.find(site); | 74 SiteInstanceMap::iterator i = site_instance_map_.find(site); |
| 75 if (i != site_instance_map_.end() && i->second == site_instance) { | 75 if (i != site_instance_map_.end() && i->second == site_instance) { |
| 76 // Matches, so erase it. | 76 // Matches, so erase it. |
| 77 site_instance_map_.erase(i); | 77 site_instance_map_.erase(i); |
| 78 } | 78 } |
| 79 } | 79 } |
| 80 | 80 |
| 81 BrowsingInstance::~BrowsingInstance() { | 81 BrowsingInstance::~BrowsingInstance() { |
| 82 // We should only be deleted when all of the SiteInstances that refer to | 82 // We should only be deleted when all of the SiteInstances that refer to |
| 83 // us are gone. | 83 // us are gone. |
| 84 DCHECK(site_instance_map_.empty()); | 84 DCHECK(site_instance_map_.empty()); |
| 85 } | 85 } |
| 86 | 86 |
| 87 } // namespace content | 87 } // namespace content |
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