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authorpiman@chromium.org <piman@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-07-15 17:47:37 +0000
committerpiman@chromium.org <piman@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-07-15 17:47:37 +0000
commit8ae6b1eaba16e5ae9ed8fac4fb3068881d705c66 (patch)
tree69608da26eb532966c75fe649813d434d8ba6a95 /webkit
parent04866a2c8c4c65fd8cb02ee872b25d5b5017033f (diff)
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Fix re-entrancy case in WebPluginImpl::scriptableObject.
BUG=None TEST=Manual (with Pepper Flash). Review URL: http://codereview.chromium.org/7383002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@92710 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'webkit')
-rw-r--r--webkit/plugins/ppapi/ppapi_webplugin_impl.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/webkit/plugins/ppapi/ppapi_webplugin_impl.cc b/webkit/plugins/ppapi/ppapi_webplugin_impl.cc
index f99f319..80328ff 100644
--- a/webkit/plugins/ppapi/ppapi_webplugin_impl.cc
+++ b/webkit/plugins/ppapi/ppapi_webplugin_impl.cc
@@ -96,6 +96,11 @@ void WebPluginImpl::destroy() {
NPObject* WebPluginImpl::scriptableObject() {
scoped_refptr<ObjectVar> object(
ObjectVar::FromPPVar(instance_->GetInstanceObject()));
+ // GetInstanceObject talked to the plugin which may have removed the instance
+ // from the DOM, in which case instance_ would be NULL now.
+ if (!instance_)
+ return NULL;
+
// If there's an InstanceObject, tell the Instance's MessageChannel to pass
// any non-postMessage calls to it.
if (object) {