*** Duplicating this bug from gerrit:7024 because I can't move it ***

Cannot repro at will but have seen it. I try uploading and I get a failure. I try again and it succeeds. This latest time:

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/V/s/c/src (fullscreen-popup-experiment)> git cl upload --cq-dry-run
Running presubmit upload checks ...

** Presubmit Messages **
Missing OWNER reviewers for these files:
    third_party/WebKit/Source/core/exported/LocalFrameClientImpl.cpp
    third_party/WebKit/Source/core/page/ChromeClientImpl.cpp

Suggested OWNERS: (Use "git-cl owners" to interactively select owners.)
    fmalita@chromium.org

Missing OWNER reviewers for these files:
    third_party/WebKit/Source/core/exported/LocalFrameClientImpl.cpp
    third_party/WebKit/Source/core/page/ChromeClientImpl.cpp

Suggested OWNERS: (Use "git-cl owners" to interactively select owners.)
    bokan@chromium.org is commented as:
      bokan reviews changes around viewport behavior, scrolling, cc/blink interaction, co-ordinate spaces and input events (at third_party/WebKit/Source/core)

Presubmit checks took 4.7s to calculate.

Presubmit checks passed.
 content/browser/web_contents/web_contents_impl.cc             | 11 +++++++++++
 .../WebKit/Source/core/exported/LocalFrameClientImpl.cpp      |  2 --
 third_party/WebKit/Source/core/page/ChromeClientImpl.cpp      |  2 --
 3 files changed, 11 insertions(+), 4 deletions(-)
error: remote unpack failed: error Missing unknown e464b9095e7974c4d85cb317a26baf4240ae0e3d
To https://chromium.googlesource.com/chromium/src.git
 ! [remote rejected]           8e768f29151b1bf4d6ed1c06921e46f16ab671c0 -> refs/for/refs/heads/master%wip,m=Initial_upload (n/a (unpacker error))
error: failed to push some refs to 'https://chromium.googlesource.com/chromium/src.git'

Error after CL description prompt -- saving description to /Users/avi/.git_cl_description_backup

Failed to create a change. Please examine output above for the reason of the failure.
Hint: run command below to diagnose common Git/Gerrit credential problems:
  git cl creds-check

/V/s/c/src (fullscreen-popup-experiment) [1]> git cl upload --cq-dry-run
Running presubmit upload checks ...

** Presubmit Messages **
Missing OWNER reviewers for these files:
    third_party/WebKit/Source/core/exported/LocalFrameClientImpl.cpp
    third_party/WebKit/Source/core/page/ChromeClientImpl.cpp

Suggested OWNERS: (Use "git-cl owners" to interactively select owners.)
    dpranke@chromium.org is commented as:
      For *.gn* changes only. (at third_party/WebKit)

Missing OWNER reviewers for these files:
    third_party/WebKit/Source/core/exported/LocalFrameClientImpl.cpp
    third_party/WebKit/Source/core/page/ChromeClientImpl.cpp

Suggested OWNERS: (Use "git-cl owners" to interactively select owners.)
    sashab@chromium.org

Presubmit checks took 5.0s to calculate.

Presubmit checks passed.
 content/browser/web_contents/web_contents_impl.cc             | 11 +++++++++++
 .../WebKit/Source/core/exported/LocalFrameClientImpl.cpp      |  2 --
 third_party/WebKit/Source/core/page/ChromeClientImpl.cpp      |  2 --
 3 files changed, 11 insertions(+), 4 deletions(-)
remote: Processing changes: new: 1, done            
remote: 
remote: New Changes:        
remote:   https://chromium-review.googlesource.com/614662 An experiment in the layout tests and fullscreen.        
remote: 
To https://chromium.googlesource.com/chromium/src.git
 * [new branch]                55d1060e057e3abf32d9cc8a0722baa0a8eec81f -> refs/for/refs/heads/master%wip,m=Initial_upload

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