Roll gwt to 2.7.0 (from 2.5.1)

Roll gwt to 2.7.0 (from 2.5.1)

See the changes to gwt here:
http://www.gwtproject.org/release-notes.html

This has several big-ish changes for us.

1. We now use java 7 (instead of 5)
2. We no longer use gwt-exporter (gwt now has built-in export support)
3. We now use the SingleScriptLinker (which changes slightly how we
    extract javascript)

This time we don't include the docs/ or samples/ folders of the gwt sdk.

R=nyquist@chromium.org

Committed: ed4df25cb0e4d94db423b55e60a6c60caf971844

[cjhopman, 2014-11-27 01:41:39]

cjhopman@chromium.org changed reviewers:
+ nyquist@chromium.org

[cjhopman, 2014-11-27 01:41:39]

nyquist: *

Here's a fun thanksgiving review for ya!

I'll be deleting third_party/gwt-2.5.1 and third_party/gwt_exporter in a second
rietveld-skipping change (it's 7500 files or so).

[nyquist, 2014-12-02 06:31:03]

https://codereview.chromium.org/762563003/diff/1/create_standalone_js.py
File create_standalone_js.py (right):

https://codereview.chromium.org/762563003/diff/1/create_standalone_js.py#newc...
create_standalone_js.py:26: marker = 'domdistiller();'
Any reason why |marker| is defined inside the loop?

https://codereview.chromium.org/762563003/diff/1/create_standalone_js.py#newc...
create_standalone_js.py:29: [l[len(marker):]] +
Maybe add a tiny comment about including everything from after the marker until
the next to last line, and that the last line is included with a replace?
That would enable new readers to not have to parse the python slice number game.

https://codereview.chromium.org/762563003/diff/1/src/DomDistiller.gwt.xml
File src/DomDistiller.gwt.xml (right):

https://codereview.chromium.org/762563003/diff/1/src/DomDistiller.gwt.xml#new...
src/DomDistiller.gwt.xml:25: <define-linker name='sso'
class='com.google.gwt.core.linker.SingleScriptLinker'/>
Nit: Why 'sso' and not 'ssl'?

[cjhopman, 2014-12-02 20:10:36]

https://codereview.chromium.org/762563003/diff/1/create_standalone_js.py
File create_standalone_js.py (right):

https://codereview.chromium.org/762563003/diff/1/create_standalone_js.py#newc...
create_standalone_js.py:26: marker = 'domdistiller();'
On 2014/12/02 06:31:03, nyquist wrote:
> Any reason why |marker| is defined inside the loop?

Done.

https://codereview.chromium.org/762563003/diff/1/create_standalone_js.py#newc...
create_standalone_js.py:29: [l[len(marker):]] +
On 2014/12/02 06:31:03, nyquist wrote:
> Maybe add a tiny comment about including everything from after the marker
until
> the next to last line, and that the last line is included with a replace?
> That would enable new readers to not have to parse the python slice number
game.

Done.

https://codereview.chromium.org/762563003/diff/1/src/DomDistiller.gwt.xml
File src/DomDistiller.gwt.xml (right):

https://codereview.chromium.org/762563003/diff/1/src/DomDistiller.gwt.xml#new...
src/DomDistiller.gwt.xml:25: <define-linker name='sso'
class='com.google.gwt.core.linker.SingleScriptLinker'/>
On 2014/12/02 06:31:03, nyquist wrote:
> Nit: Why 'sso' and not 'ssl'?

Because that's what gwt uses for the abbreviation of it. Changed to import gwt's
Core module and not define it myself (see
http://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html)

[nyquist, 2014-12-02 21:20:23]

lgtm

[cjhopman, 2014-12-02 21:37:19]

Committed patchset #3 (id:40001) manually as
ed4df25cb0e4d94db423b55e60a6c60caf971844 (presubmit successful).