Add tab switch notification to the Mac plugin plumbing.

Using the new notification:
- Update plugin clip rect when it's not in a visible tab.
- Update plugin idle event rate when it's not in a visible tab.
- Switch the unfocus-on-tab-switch event to be based on the this new notification, instead of a browser-level broadcast.

Related changes:
- Stop sending redundant focus events to plugins.
- Send window activation to Carbon event plugins too, not just Cocoa.
- Now that plugins are getting window and tab de-focus events directly, remove the older hack to force all plugins to lose focus any window or tab loses focus.

BUG=29371, 32229, 30838
TEST=Flash should still only register keystrokes when it is in the active window+tab. Plugins in background tabs should use less CPU.

Review URL: http://codereview.chromium.org/548224

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@37743 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 2 deletions

diff --git a/chrome/plugin/plugin_thread.cc b/chrome/plugin/plugin_thread.cc
index fb02ac5..0a9ef12 100644
--- a/chrome/plugin/plugin_thread.cc
+++ b/chrome/plugin/plugin_thread.cc
@@ -149,14 +149,15 @@ void PluginThread::OnPluginMessage(const std::vector<unsigned char> &data) {
 
 #if defined(OS_MACOSX)
 void PluginThread::OnPluginFocusNotify(uint32 instance_id) {
-  WebPluginDelegateImpl* instance =
+  WebPluginDelegateImpl* focused_instance =
       reinterpret_cast<WebPluginDelegateImpl*>(instance_id);
   std::set<WebPluginDelegateImpl*> active_delegates =
       WebPluginDelegateImpl::GetActiveDelegates();
   for (std::set<WebPluginDelegateImpl*>::iterator iter =
            active_delegates.begin();
        iter != active_delegates.end(); iter++) {
-    (*iter)->FocusNotify(instance);
+    WebPluginDelegateImpl* instance = *iter;
+    instance->FocusChanged(instance == focused_instance);
   }
 }
 #endif