https://bugs.webkit.org/show_bug.cgi?id=126769

Patch by Sergio Correia <sergio.correia@openbossa.org> on 2014-01-12
Reviewed by Gyuyoung Kim.

The EFL and WK2 test binaries are currently being generated at *TestWebKitAPI/
[E]WebKit2, respectively, and this causes problems because the logic to find
where WebProcess is to look in the same directory of the running process and
then proceed to use LIBEXECDIR (typically /usr/loca/bin).

This patch introduces a WEBKIT_EXEC_PATH environment variable, inspired in the
Gtk port, which allows us to look for WebProcess initially in this directory,
if it's defined.

.:

* Source/cmake/OptionsEfl.cmake: Define WEBKIT_EXEC_PATH, to be used by
[E]WebKit2 tests.

Source/WebKit2:

* Shared/efl/ProcessExecutablePathEfl.cpp:
(WebKit::findProcessPath): Change the logic to look initially in
WEBKIT_EXEC_PATH, then proceed with the existing checks.
* UIProcess/API/efl/tests/UnitTestUtils/EWK2UnitTestEnvironment.cpp:
(EWK2UnitTest::EWK2UnitTestEnvironment::EWK2UnitTestEnvironment):
Define WEBKIT_EXEC_PATH to be used by EWebKit2 tests.

Tools:

* TestWebKitAPI/efl/main.cpp:
(main): Define WEBKIT_EXEC_PATH to be used by WebKit2 API tests.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161857 268f45cc-cd09-0410-ab3c-d52691b4dbfc