modules/video_processing: refactor interface->include + more.

webrtc/modules/modules.gyp

Index: webrtc/modules/modules.gyp
diff --git a/webrtc/modules/modules.gyp b/webrtc/modules/modules.gyp
index 748db11102a32d8c87180977b45b2c307d4205ad..94e750abc715675a2b64c8e9ed394b99d213fbc8 100644
--- a/webrtc/modules/modules.gyp
+++ b/webrtc/modules/modules.gyp
@@ -294,11 +294,11 @@
             'video_coding/main/source/test/stream_generator.cc',
             'video_coding/main/source/test/stream_generator.h',
             'video_coding/utility/quality_scaler_unittest.cc',
-            'video_processing/main/test/unit_test/brightness_detection_test.cc',
-            'video_processing/main/test/unit_test/content_metrics_test.cc',
-            'video_processing/main/test/unit_test/deflickering_test.cc',
-            'video_processing/main/test/unit_test/video_processing_unittest.cc',
-            'video_processing/main/test/unit_test/video_processing_unittest.h',
+            'video_processing/test/brightness_detection_test.cc',
+            'video_processing/test/content_metrics_test.cc',
+            'video_processing/test/deflickering_test.cc',
+            'video_processing/test/video_processing_unittest.cc',
+            'video_processing/test/video_processing_unittest.h',
           ],
           'conditions': [
             ['enable_bwe_test_logging==1', {