Bug 743402, Part 1: Add a GetConsumedHeight() function to nsSplittableFrame in order to retrieve the portion of the computed height that was consumed by previous-in-flows. [r=roc]
Bug 743402, Part 2: Pull GetEffectiveComputedHeight() into nsSplittableFrame and refactor it to utilize consumed height for paginated content. [r=roc]
Bug 743402, Part 3: Refactor nsBlockFrame to utilize new calculations for paginated content. [r=roc]
Bug 743402, Part 4: Refactor ApplySkipSides() and GetSkipSides() to return the correct value during reflow by adding an optional nsHTMLReflowState parameter. [r=roc]
Bug 743402, Part 5: Utilize new computed height calculations in nsSplittableFrame to correctly compute the height of a column set frame in paginated context. [r=roc]
Bug 743402, Part 6: Add unit tests for functionality of bug 743402. [r=roc]