[Paint Preview] Blink Implementation of Paint Preview

This CL implements the required code to capture paint previews in Blink.
The majority of the code is shared with printing; however, new flags are
introduced to handle the differences between printing and painting of
previews. This CL *does not* introduce support for OOP iframe paint
previews and scrolling them (to be handled in a separate CL).

Desired Behaviors;
- Paint Previews should look exactly like the current webpage and should
  not reformat in the way printing does. This includes ignoring print
  display tags and the simplifications used in painting.
- Paint Previews should re-layout to be the full contents of the page
  not just the viewport. This is achieved by printing to a canvas the
  size of the document (single page).
- Paint Previews should print to a single Skia Picture (per frame)
  rather than a Metafile Skia Document.

Design doc: go/fdt-design
Part of landing:
https://chromium-review.googlesource.com/c/chromium/src/+/1786583

Bug: 1001109
Change-Id: If0e947befea8ecc78b2cbee950e8c1cbd8e1281e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1844057
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Philip Rogers <pdr@chromium.org>
Commit-Queue: Calder Kitagawa <ckitagawa@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713822}

• cc/paint/paint_canvas.h[diff]
• components/BUILD.gn[diff]
• components/paint_preview/renderer/DEPS[diff]
• components/paint_preview/renderer/paint_preview_recorder_browsertest.cc[diff]
• components/paint_preview/renderer/paint_preview_recorder_impl.cc[diff]
• third_party/blink/public/web/web_local_frame.h[diff]
• third_party/blink/renderer/core/dom/document.cc[diff]
• third_party/blink/renderer/core/dom/document.h[diff]
• third_party/blink/renderer/core/frame/local_frame.cc[diff]
• third_party/blink/renderer/core/frame/local_frame.h[diff]
• third_party/blink/renderer/core/frame/local_frame_view.cc[diff]
• third_party/blink/renderer/core/frame/web_local_frame_impl.cc[diff]
• third_party/blink/renderer/core/frame/web_local_frame_impl.h[diff]
• third_party/blink/renderer/core/layout/layout_view.cc[diff]
• third_party/blink/renderer/core/paint/frame_painter.cc[diff]
• third_party/blink/renderer/core/paint/paint_layer_painter.cc[diff]
• third_party/blink/renderer/core/paint/paint_property_tree_builder.cc[diff]
• third_party/blink/renderer/core/paint/view_painter.cc[diff]
• third_party/blink/renderer/platform/graphics/graphics_context.cc[diff]
• third_party/blink/renderer/platform/graphics/paint/paint_record_builder.h[diff]