Keep infobar visible during plug-in installation and show installation state.

Instead of dismissing the infobar when the user accepts it, it's now dismissed when the last missing plug-in placeholder is gone (because we loaded the actual plug-in).

BUG=110701
TEST=none


Review URL: http://codereview.chromium.org/9269007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@119246 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 14 insertions, 4 deletions

diff --git a/chrome/browser/plugin_installer_observer.cc b/chrome/browser/plugin_installer_observer.cc
index 72284c7..419f60e 100644
--- a/chrome/browser/plugin_installer_observer.cc
+++ b/chrome/browser/plugin_installer_observer.cc
@@ -8,13 +8,11 @@
 
 PluginInstallerObserver::PluginInstallerObserver(PluginInstaller* installer)
     : installer_(installer) {
-  if (installer)
-    installer->AddObserver(this);
+  installer->AddObserver(this);
 }
 
 PluginInstallerObserver::~PluginInstallerObserver() {
-  if (installer_)
-    installer_->RemoveObserver(this);
+  installer_->RemoveObserver(this);
 }
 
 void PluginInstallerObserver::DidStartDownload() {
@@ -25,3 +23,15 @@ void PluginInstallerObserver::DidFinishDownload() {
 
 void PluginInstallerObserver::DownloadError(const std::string& message) {
 }
+
+WeakPluginInstallerObserver::WeakPluginInstallerObserver(
+    PluginInstaller* installer) : PluginInstallerObserver(installer) {
+  installer->AddWeakObserver(this);
+}
+
+WeakPluginInstallerObserver::~WeakPluginInstallerObserver() {
+  installer()->RemoveWeakObserver(this);
+}
+
+void WeakPluginInstallerObserver::OnlyWeakObserversLeft() {
+}