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rebase CL 2044170 part 2.
part 1 was merged in CL 2431864.

DevTools uses `ExecuteJavaScriptMethod` instead of `ExecuteJavaScript`, which should reduce serialisation/deserialisation overhead.

Loading Chrome DevTools on the page https://www.facebook.com/Shakira:
Before:
  V8.CompileCode, 130.326 ms, 2227 times
  V8.ParseProgram, 49.329 ms, 1878 times

After:
  V8.CompileCode, 18.571 ms, 343 times
  V8.ParseProgram, 0.053ms, 2 times

Loading Chrome DevTools on Chrome DevTools on the page https://www.facebook.com/Shakira:
DevTools on DevTools
Before:
  V8.CompileCode, 180.928 ms, 3708
  V8.ParseProgram, 59.535 ms, 3700
After:
  V8.CompileCode, 4.956 ms, 92
  V8.ParseFunction, 1.945 ms, 92


Bug: chromium:1029427
Change-Id: I78011c8f80a99c85d65354fb4a8a776491ac4f3e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2442012
Commit-Queue: Maksim Sadym <sadym@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813641}