[Metrics] Move Windows-specific CountBrowserCrashDumpAttempts() out of MetricsService

[Metrics] Move Windows-specific CountBrowserCrashDumpAttempts() out of MetricsService

BUG=374216
TEST=none
R=asvitkine@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=272590

[Alexei Svitkine (slow), 2014-05-23 10:54:36]

LGTM

[Ilya Sherman, 2014-05-23 10:55:36]

The CQ bit was checked by isherman@chromium.org

[commit-bot: I haz the power, 2014-05-23 10:56:05]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/isherman@chromium.org/296013005/20001

[commit-bot: I haz the power, 2014-05-23 14:22:43]

FYI, CQ is re-trying this CL (attempt #1).
Please consider checking whether the failures are real,
and report flakes to chrome-troopers@google.com.
The failing builders are:
  android_chromium_gn_compile_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_chromium_gn_c...)
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)
  chromium_presubmit on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/chromium_presubmit/bu...)
  linux_chromium_clang_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_clang_...)
  linux_chromium_gn_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_gn_rel...)
  linux_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_rel/bu...)
  win_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_rel/buil...)

[commit-bot: I haz the power, 2014-05-23 14:26:11]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-05-23 14:26:12]

Try jobs failed on following builders:
  linux_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_rel/bu...)

[Ilya Sherman, 2014-05-23 14:37:32]

The CQ bit was checked by isherman@chromium.org

[commit-bot: I haz the power, 2014-05-23 14:38:03]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/isherman@chromium.org/296013005/40001

[commit-bot: I haz the power, 2014-05-23 21:06:52]

Change committed as 272590