Define MessagePumpDefault and use it to implement MessageLoop on non-Windows

platforms.  This is actually just a first-step toward the real fix which is to
use MessagePumpDefault on all platforms on non-UI and non-IO threads.

This CL also fixes some GCC compilation errors.  I renamed MessageLoopOwnable
to TaskBase, which seems more appropriate since a MessageLoopOwnable has a
next Task pointer and clearly is only meaningful in the context of Task.  (I
wonder why it is even a separate class, but that is another issue.)  I had to
make the next_task / set_next_task methods public since they are used by an
inner class of MessageLoop.  Perhaps those inner classes should be made into
top-level classes, but that seemed like too much to change at this time.

R=jar,mmentovai

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@1045 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 2 insertions, 0 deletions

diff --git a/base/message_pump.h b/base/message_pump.h
index 90336df..a06a435 100644
--- a/base/message_pump.h
+++ b/base/message_pump.h
@@ -42,6 +42,8 @@ class MessagePump : public RefCountedThreadSafe<MessagePump> {
   // these delegate methods are used.
   class Delegate {
    public:
+    virtual ~Delegate() {}
+
     // Called from within Run in response to ScheduleWork or when the message
     // pump would otherwise call DoDelayedWork.  Returns true to indicate that
     // work was done.  DoDelayedWork will not be called if DoWork returns true.