In order to move print native dialog code to windows widget, this patch will
create skeleton of PrintDialogService to windows widget.
Toolkit code(i.e. nsIPrintingPrompotService) will call this PrintDialogService.
Note that this PrintingDialogService suppose running on main process, so we
should call this interface from main process(i.e. nsPrintingPromptService, not
nsPrintingProxy).
MozReview-Commit-ID: 3P6kac9I9W4
ScreenHelperWin is the platform dependent part of the original
nsScreenManagerWin and nsScreenWin. It listens the WM_DISPLAYCHANGE
message and pushes updates to ScreenManager. See patch part 4. for how
ScreenManager works.
MozReview-Commit-ID: 20A3ZQKmH9a
Changes to nsIScreen and nsIScreenManager were reviewed by roc.
Changes to dom/ipc were reviewed by jimm.
Changes to gfx/src/nsDeviceContext.cpp were reviewed by roc.
Changes to widget/android were reviewed by snorp.
Changes to widget/cocoa were reviewed by smichaud.
Changes to widget/gtk were reviewed by roc.
Changes to widget/windows were reviewed by jimm.
Changes to widget/xpwidgets were reviewed by roc.
Changes to nsIScreen and nsIScreenManager were reviewed by roc.
Changes to dom/ipc were reviewed by jimm.
Changes to gfx/src/nsDeviceContext.cpp were reviewed by roc.
Changes to widget/android were reviewed by snorp.
Changes to widget/cocoa were reviewed by smichaud.
Changes to widget/gtk were reviewed by roc.
Changes to widget/windows were reviewed by jimm.
Changes to widget/xpwidgets were reviewed by roc.
