Move gflags usage to video_loopback.

gflags aren't used by the test environment and is an unnecessary
dependency. They're only used by the video_loopback target, so moving
them there.

R=mflodman@webrtc.org
BUG=3113

Review URL: https://webrtc-codereview.appspot.com/12379006

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@6120 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc_tests.gypi b/webrtc_tests.gypi
index 1ff3a9c..384f57c 100644
--- a/webrtc_tests.gypi
+++ b/webrtc_tests.gypi
@@ -21,10 +21,10 @@
       'type': 'executable',
       'sources': [
         'video/loopback.cc',
-        'test/test_main.cc',
       ],
       'dependencies': [
         '<(DEPTH)/testing/gtest.gyp:gtest',
+        '<(DEPTH)/third_party/gflags/gflags.gyp:gflags',
         'test/webrtc_test_common.gyp:webrtc_test_common',
         'webrtc',
       ],
@@ -43,7 +43,6 @@
       ],
       'dependencies': [
         '<(DEPTH)/testing/gtest.gyp:gtest',
-        '<(DEPTH)/third_party/gflags/gflags.gyp:gflags',
         'modules/modules.gyp:rtp_rtcp',
         'test/metrics.gyp:metrics',
         'test/webrtc_test_common.gyp:webrtc_test_common',
@@ -62,7 +61,6 @@
       ],
       'dependencies': [
         '<(DEPTH)/testing/gtest.gyp:gtest',
-        '<(DEPTH)/third_party/gflags/gflags.gyp:gflags',
         'modules/modules.gyp:neteq_test_support',  # Needed by neteq_performance_unittest.
         'modules/modules.gyp:rtp_rtcp',
         'test/webrtc_test_common.gyp:webrtc_test_common',