Rename spellchecker preprocessor flag

Rename spellchecker preprocessor flag

Renamed USE_PLATFORM_SPELLCHECKER preprocessor flag to
USE_BROWSER_SPELLCHECKER to more accurately reflect the fact
that the browser side contains other services such as red
underlines that will be leveraged by any spellchecker.

BUG=415302
Committed: https://crrev.com/990eb97f091d9719b2061de67b7e585f6a967d8b
Cr-Commit-Position: refs/heads/master@{#341771}

[dylanking, 2015-08-04 01:10:56]

dylanking@google.com changed reviewers:
+ dcheng@chromium.org, groby@chromium.org, jochen@chromium.org

[dylanking, 2015-08-04 01:10:57]

+groby@ for owners review of:
  chrome/browser/spellchecker/spellcheck_hunspell_dictionary.cc
  chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h
  chrome/browser/spellchecker/spellcheck_message_filter.cc
  chrome/browser/spellchecker/spellcheck_message_filter_unittest.cc
  chrome/renderer/spellchecker/hunspell_engine.cc
  chrome/renderer/spellchecker/spellcheck_provider.cc
  chrome/renderer/spellchecker/spellcheck_provider.h
  chrome/renderer/spellchecker/spellcheck_provider_test.cc

+jochen@ for owners review of:
  build/common.gypi
  build/config/BUILD.gn
  build/config/features.gni
  chrome/browser/renderer_context_menu/spelling_menu_observer.cc
  chrome/browser/spellchecker/spellcheck_hunspell_dictionary.cc
  chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h
  chrome/browser/spellchecker/spellcheck_message_filter.cc
  chrome/browser/spellchecker/spellcheck_message_filter_unittest.cc
  chrome/renderer/BUILD.gn
  chrome/renderer/spellchecker/hunspell_engine.cc
  chrome/renderer/spellchecker/spellcheck_provider.cc
  chrome/renderer/spellchecker/spellcheck_provider.h
  chrome/renderer/spellchecker/spellcheck_provider_test.cc

+dcheng@ for owners review of:
chrome/common/spellcheck_messages.h

[dcheng, 2015-08-04 06:21:37]

Renaming changes in chrome/common/spellcheck_messages.h LGTM

[jochen (gone - plz use gerrit), 2015-08-04 13:48:21]

lgtm

[groby-ooo-7-16, 2015-08-04 17:22:56]

spellchecker LGTM - thank you for changing this!

[dylanking, 2015-08-04 18:02:36]

The CQ bit was checked by dylanking@google.com

[commit-bot: I haz the power, 2015-08-04 18:04:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1263423006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1263423006/1

[commit-bot: I haz the power, 2015-08-04 19:56:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-04 19:59:02]

Patchset 1 (id:??) landed as
https://crrev.com/990eb97f091d9719b2061de67b7e585f6a967d8b
Cr-Commit-Position: refs/heads/master@{#341771}