Revert of [DevTools] Unpause renderer when paused RenderFrame is closed.

Revert of [DevTools] Unpause renderer when paused RenderFrame is closed. (patchset #4 id:60001 of https://codereview.chromium.org/1047653003/)

Reason for revert:
Broke Linux ASan LSan Tests (1):

https://build.chromium.org/p/chromium.memory/builders/Linux%20ASan%20LSan%20Tests%20%281%29/builds/12190/steps/content_browsertests/logs/DevToolsAgentTest.DevToolsResumeOnClose

Original issue's description:
> [DevTools] Unpause renderer when paused RenderFrame is closed.
>
> BUG=469421
>
> Committed: https://crrev.com/cf00f40f5d627de9b6110682235ebb3dfac60486
> Cr-Commit-Position: refs/heads/master@{#323258}

TBR=creis@chromium.org,kenrb@chromium.org,nasko@chromium.org,pfeldman@chromium.org,dgozman@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=469421
Committed: https://crrev.com/b58e7736a6083431e39f86262ce441fe47d907d1
Cr-Commit-Position: refs/heads/master@{#323315}

[mfomitchev1, 2015-04-01 20:20:49]

Created Revert of [DevTools] Unpause renderer when paused RenderFrame is closed.

[commit-bot: I haz the power, 2015-04-01 20:21:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1053833002/1

[commit-bot: I haz the power, 2015-04-01 20:22:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-01 20:23:08]

Patchset 1 (id:??) landed as
https://crrev.com/b58e7736a6083431e39f86262ce441fe47d907d1
Cr-Commit-Position: refs/heads/master@{#323315}