Fix build of pdfium_embeddertest under V8_USE_EXTERNAL_STARTUP_DATA.

Fix build of pdfium_embeddertest under V8_USE_EXTERNAL_STARTUP_DATA.

Currently, this is a difference between the standalone pdfium environment
vs. pdfium as part of a chromium checkout.

Locating the external data files is a nusiance when you don't have the
binary's argv[0] line, so we create a new main that preserves this for
us.

R=thestig@chromium.org

Committed: https://pdfium.googlesource.com/pdfium/+/36faa4ac92100936d108354a066218d1aae327a3

[Tom Sepez, 2015-01-22 20:42:14]

tsepez@chromium.org changed reviewers:
+ jam@chromium.org
- thestig@chromium.org

[Tom Sepez, 2015-01-22 20:45:13]

John, please review.  This would block a pdfium roll, should one be required.

[Tom Sepez, 2015-01-23 00:47:09]

tsepez@chromium.org changed reviewers:
+ thestig@chromium.org
- jam@chromium.org

[Tom Sepez, 2015-01-23 00:47:37]

I'm guessing jam@ is overloaded, so adding Lei.  Please review.

[Lei Zhang, 2015-01-23 01:10:11]

lgtm

https://codereview.chromium.org/851283006/diff/20001/testing/embedder_test.h
File testing/embedder_test.h (right):

https://codereview.chromium.org/851283006/diff/20001/testing/embedder_test.h#...
testing/embedder_test.h:71: static const char* g_exe_path_;
Just put this in embedder_test.cpp in an anonymous namespace?

[Tom Sepez, 2015-01-23 01:15:41]

On 2015/01/23 01:10:11, Lei Zhang wrote:
> lgtm
> 
> https://codereview.chromium.org/851283006/diff/20001/testing/embedder_test.h
> File testing/embedder_test.h (right):
> 
>
https://codereview.chromium.org/851283006/diff/20001/testing/embedder_test.h#...
> testing/embedder_test.h:71: static const char* g_exe_path_;
> Just put this in embedder_test.cpp in an anonymous namespace?
Will Do.

[Tom Sepez, 2015-01-23 01:18:50]

Committed patchset #3 (id:40001) manually as
36faa4ac92100936d108354a066218d1aae327a3 (presubmit successful).