Revert 96567 - Reland 96406 - Print preview page selection should not require a rerendering of dr...

Revert 96567 - Reland 96406 - Print preview page selection should not require a rerendering of draft pages.

On page selection, regenerate the complete document with the selection, but preserve the existing draft pages and simply display a subset of them.

1. Added a new param |clear all preview data| to |PrintHostMsg_DidGetPreviewPageCount|.
2. Removed |requested_preview_page_index| from |PrintMsg_ContinuePreview|

Review URL: http://codereview.chromium.org/7544018

Original Commit: http://src.chromium.org/viewvc/chrome?view=rev&revision=96406

Revert Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=96414

BUG=84383
TEST=print preview works after code changes.

Review URL: http://codereview.chromium.org/7628019

TBR=kmadhusu@chromium.org
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=96581