Fix invalid constructor arguments to tsan_analyze.py

Fix invalid constructor arguments to tsan_analyze.py

The recent changes in the memory tools scripts in r226634
(https://codereview.chromium.org/25815003) breaks some use of
the TSan RV tool. Examples:
http://build.chromium.org/p/client.webrtc.fyi/builders/Linux%20TsanRV

The removal of the source dir parameter to the constructor of
the TsanAnalyzer class was update in one place of valgrind_test.py.
This CL fixes the remaining places.

BUG=none
NOTRY=True
TESTED=Successful local test using:
 GYP_DEFINES=build_with_tool=tsan build/gyp_chromium
 ninja -C out/Release base_unittests
 tools/valgrind/chrome_tests.sh --tool=tsan_rv -b out --target Release -t base_unittests

Review URL: https://codereview.chromium.org/27480002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229147 0039d316-1c4b-4281-b951-d872f2087c98