afdba93915
We now enable the glass pane behind our dialogs and mark it with a 0.75 opacity so the page disappears while the error is being presented. Most dialogs are modal now and will only dismiss through their own private close buttons. This forces the user to interact with the dialog rather than accidentally sending it away by clicking elsewhere in the window. Our error dialog no longer relies upon the DialogBox type from GWT, but instead draws all of its UI itself. This is to avoid the dialog from looking ugly when it cannot load the remaining resources for the borders. Change-Id: Ieef4370368a28e31810e270c98f7877adc24061a Signed-off-by: Shawn O. Pearce <sop@google.com>