Moving chrome/browser/chromeos/drive/change_list* into components/drive

Moving chrome/browser/chromeos/drive/change_list* into components/drive

Files moved from chrome/browser/chromeos/drive into components/drive:
- change_list_loader.cc
- change_list_loader.h
- change_list_loader_observer.h
- change_list_loader_unittest.cc
- change_list_processor.cc
- change_list_processor.h
- change_list_processor_unittest.cc

Test steps:
1. Verify that things still build via GYP.
   $ GYP_DEFINES="use_goma=1 chromeos=1" gclient sync
   $ ninja -C out/Debug -j 150 chrome unit_tests \
         interactive_ui_tests browser_tests drive

2. Verify that things still build via GN.
   $ gn gen out/Default --args='target_os="chromeos" use_goma=true'
   $ ninja -C out/Default -j 150 chrome unit_tests \
         interactive_ui_tests browser_tests components/drive

TEST=Please see "Test steps" above.
BUG=257943, 498951
Committed: https://crrev.com/b80bf26365a1bfa10810c5c7d3c8b7014536feab
Cr-Commit-Position: refs/heads/master@{#345103}

[Łukasz Anforowicz, 2015-08-21 19:12:36]

lukasza@chromium.org changed reviewers:
+ hashimoto@chromium.org

[Łukasz Anforowicz, 2015-08-21 19:12:37]

Ryo, could you please take a look?

[hashimoto, 2015-08-24 05:44:38]

lgtm assuming GN gets fixed.

https://codereview.chromium.org/1310713002/diff/1/components/drive/BUILD.gn
File components/drive/BUILD.gn (right):

https://codereview.chromium.org/1310713002/diff/1/components/drive/BUILD.gn#n...
components/drive/BUILD.gn:9: "drive/change_list_loader.cc",
No need to have "drive/"?
The same goes for others.

[Łukasz Anforowicz, 2015-08-24 16:27:11]

https://codereview.chromium.org/1310713002/diff/1/components/drive/BUILD.gn
File components/drive/BUILD.gn (right):

https://codereview.chromium.org/1310713002/diff/1/components/drive/BUILD.gn#n...
components/drive/BUILD.gn:9: "drive/change_list_loader.cc",
On 2015/08/24 05:44:37, hashimoto wrote:
> No need to have "drive/"?
> The same goes for others.

Done.  Thanks for catching this.

[Łukasz Anforowicz, 2015-08-24 16:27:21]

The CQ bit was checked by lukasza@chromium.org

[Łukasz Anforowicz, 2015-08-24 16:27:21]

The patchset sent to the CQ was uploaded after l-g-t-m from
hashimoto@chromium.org
Link to the patchset: https://codereview.chromium.org/1310713002/#ps20001
(title: "Fixed paths in components/drive/BUILD.gn")

[commit-bot: I haz the power, 2015-08-24 16:28:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1310713002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1310713002/20001

[commit-bot: I haz the power, 2015-08-24 17:04:41]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-08-24 17:05:25]

Patchset 2 (id:??) landed as
https://crrev.com/b80bf26365a1bfa10810c5c7d3c8b7014536feab
Cr-Commit-Position: refs/heads/master@{#345103}