Move frame_generator_capture.{cc, h} and video_capturer.h to video_test_common.

webrtc/modules/desktop_capture/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/ui.gni")
 import("../../webrtc.gni")
@@ skipping 28 matching lines @@
     deps = []
     if (rtc_desktop_capture_supported) {
       deps += [
         ":desktop_capture_mock",
         ":primitives",
         ":screen_drawer",
         "../../base:rtc_base",
         "../../base:rtc_base_approved",
         "../../system_wrappers:system_wrappers",
         "../../test:test_support",
+        "../../test:video_test_support",
       ]
       sources += [
         "screen_capturer_integration_test.cc",
         "screen_drawer_unittest.cc",
       ]
     }
   }
 
   rtc_source_set("desktop_capture_unittests") {
     testonly = true
@@ skipping 241 matching lines @@
     sources = [
       "differ_vector_sse2.cc",
       "differ_vector_sse2.h",
     ]
 
     if (is_posix) {
       cflags = [ "-msse2" ]
     }
   }
 }