Add video_capture_tests_apk_target

In https://codereview.chromium.org/500423004/ the
target that was previously used to build the Android APK
tests was removed. When building these tests from a
standalone checkout, the video_capture_tests_apk target
was missing in the chain of targets that gets generated
into the 'all' target.

BUG=3764
TESTED=Trybots.
TBR=henrike@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/20349004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7094 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/video_capture/video_capture.gypi

@@ -209,6 +209,17 @@
         },
       ], # targets
       'conditions': [
+        ['OS=="android"', {
+          'targets': [
+            {
+              'target_name': 'video_capture_tests_apk_target',
+              'type': 'none',
+              'dependencies': [
+                '<(apk_tests_path):video_capture_tests_apk',
+              ],
+            },
+          ],
+        }],
         ['test_isolation_mode != "noop"', {
           'targets': [
             {