d5072a821b
Even if a WebContents does not have an opener, if there is another WebContents in the BrowsingInstance, swapping processes can break pages which expect script access. BUG=118294 Review URL: https://codereview.chromium.org/257083002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@270581 0039d316-1c4b-4281-b951-d872f2087c98
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
// Copyright (c) 2012 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 "content/browser/browsing_instance.h"
|
|
|
|
#include "base/command_line.h"
|
|
#include "base/logging.h"
|
|
#include "content/browser/site_instance_impl.h"
|
|
#include "content/public/browser/browser_context.h"
|
|
#include "content/public/browser/content_browser_client.h"
|
|
#include "content/public/common/content_switches.h"
|
|
#include "content/public/common/url_constants.h"
|
|
|
|
namespace content {
|
|
|
|
BrowsingInstance::BrowsingInstance(BrowserContext* browser_context)
|
|
: browser_context_(browser_context),
|
|
active_contents_count_(0u) {
|
|
}
|
|
|
|
bool BrowsingInstance::HasSiteInstance(const GURL& url) {
|
|
std::string site =
|
|
SiteInstanceImpl::GetSiteForURL(browser_context_, url)
|
|
.possibly_invalid_spec();
|
|
|
|
return site_instance_map_.find(site) != site_instance_map_.end();
|
|
}
|
|
|
|
SiteInstance* BrowsingInstance::GetSiteInstanceForURL(const GURL& url) {
|
|
std::string site =
|
|
SiteInstanceImpl::GetSiteForURL(browser_context_, url)
|
|
.possibly_invalid_spec();
|
|
|
|
SiteInstanceMap::iterator i = site_instance_map_.find(site);
|
|
if (i != site_instance_map_.end())
|
|
return i->second;
|
|
|
|
|
|
// No current SiteInstance for this site, so let's create one.
|
|
SiteInstanceImpl* instance = new SiteInstanceImpl(this);
|
|
|
|
// Set the site of this new SiteInstance, which will register it with us.
|
|
instance->SetSite(url);
|
|
return instance;
|
|
}
|
|
|
|
void BrowsingInstance::RegisterSiteInstance(SiteInstance* site_instance) {
|
|
DCHECK(static_cast<SiteInstanceImpl*>(site_instance)
|
|
->browsing_instance_.get() ==
|
|
this);
|
|
DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite());
|
|
std::string site = site_instance->GetSiteURL().possibly_invalid_spec();
|
|
|
|
// Only register if we don't have a SiteInstance for this site already.
|
|
// It's possible to have two SiteInstances point to the same site if two
|
|
// tabs are navigated there at the same time. (We don't call SetSite or
|
|
// register them until DidNavigate.) If there is a previously existing
|
|
// SiteInstance for this site, we just won't register the new one.
|
|
SiteInstanceMap::iterator i = site_instance_map_.find(site);
|
|
if (i == site_instance_map_.end()) {
|
|
// Not previously registered, so register it.
|
|
site_instance_map_[site] = site_instance;
|
|
}
|
|
}
|
|
|
|
void BrowsingInstance::UnregisterSiteInstance(SiteInstance* site_instance) {
|
|
DCHECK(static_cast<SiteInstanceImpl*>(site_instance)
|
|
->browsing_instance_.get() ==
|
|
this);
|
|
DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite());
|
|
std::string site = site_instance->GetSiteURL().possibly_invalid_spec();
|
|
|
|
// Only unregister the SiteInstance if it is the same one that is registered
|
|
// for the site. (It might have been an unregistered SiteInstance. See the
|
|
// comments in RegisterSiteInstance.)
|
|
SiteInstanceMap::iterator i = site_instance_map_.find(site);
|
|
if (i != site_instance_map_.end() && i->second == site_instance) {
|
|
// Matches, so erase it.
|
|
site_instance_map_.erase(i);
|
|
}
|
|
}
|
|
|
|
BrowsingInstance::~BrowsingInstance() {
|
|
// We should only be deleted when all of the SiteInstances that refer to
|
|
// us are gone.
|
|
DCHECK(site_instance_map_.empty());
|
|
DCHECK_EQ(0u, active_contents_count_);
|
|
}
|
|
|
|
} // namespace content
|