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authorrobertshield@chromium.org <robertshield@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-05-27 16:44:31 +0000
committerrobertshield@chromium.org <robertshield@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-05-27 16:44:31 +0000
commit6a7748e79cb7118089d5857291cb76d57c5c8162 (patch)
treebdfe13aba5f79d4c090bd27fdf75173ff751bb3c /chrome_frame/bho_loader.cc
parent13ffa32ea65d5fda56bcb030643b989d5564c586 (diff)
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Add a self-destruct mechanism to user-level Chrome Frame when it detects that system-level Chrome Frame is present. This is a first step to handling user-to-system-level handoff.
It will cause a user-level install to be correctly replaced with a system-level one once the user logs out and back in again. Additional changelists will follow that: 1) Ensure full clean-up of the user-level installation. 2) Handle notifications such that logging out and in again isn't required. BUG=82816 TEST=Install user-level Chrome Frame. Review URL: http://codereview.chromium.org/7065024 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@87033 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome_frame/bho_loader.cc')
-rw-r--r--chrome_frame/bho_loader.cc8
1 files changed, 7 insertions, 1 deletions
diff --git a/chrome_frame/bho_loader.cc b/chrome_frame/bho_loader.cc
index 2cf547d..255bb6c 100644
--- a/chrome_frame/bho_loader.cc
+++ b/chrome_frame/bho_loader.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
@@ -71,6 +71,12 @@ void BHOLoader::OnHookEvent(DWORD event, HWND window) {
UtilGetWebBrowserObjectFromWindow(browser_hwnd, __uuidof(browser),
reinterpret_cast<void**>(&browser));
if (browser) {
+ if (IsSystemLevelChromeFrameInstalled()) {
+ // We're in the right place, but a system-level installation has
+ // appeared. We should leave now.
+ return;
+ }
+
// Figure out if we're already in the property map.
wchar_t bho_clsid_as_string[MAX_PATH] = {0};
StringFromGUID2(CLSID_ChromeFrameBHO, bho_clsid_as_string,