Validate HWNDs that the renderer asks to be moved.

Validate HWNDs that the renderer asks to be moved.

We make sure any window is a child of the render view window before moving it.

BUG=7590

[Dean McNamee, 2009-02-12 13:36:30]

Make sure I didn't do anything dumb, like use the wrong HWND as the parent.

Thanks

[M-A Ruel, 2009-02-12 13:45:24]

lgtm

[jam, 2009-02-12 19:27:26]

some comments

in the future, I prefer not to be added as a reviewer unless my comments are
taken care of before commit.

http://codereview.chromium.org/24012/diff/1/2
File chrome/browser/renderer_host/render_widget_host_view_win.cc (right):

http://codereview.chromium.org/24012/diff/1/2#newcode170
Line 170: if (::IsChild(m_hWnd, move.window) == 0) {
If we're doing this check, we don't need the IsWindow above.

nit: I think (IsChild()) is sufficient and more consistent with the rest of the
code than (IsChild() == 0)