Fix no_global_constructors in modules/video_capture.

Bug: webrtc:9693
Change-Id: Ia917ab824f18991cfdcffa04ea9c063c6a224532
Reviewed-on: https://webrtc-review.googlesource.com/98640
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24641}

modules/video_capture/BUILD.gn

@@ -71,8 +71,6 @@ if (!build_with_chromium) {
     rtc_source_set("video_capture_internal_impl_objc") {
       visibility = [ ":video_capture_internal_impl" ]
 
-      configs += [ "../..:no_global_constructors" ]
-
       deps = [
         ":video_capture_module",
         "../../rtc_base:rtc_base_approved",

modules/video_capture/objc/device_info.mm

@@ -24,12 +24,6 @@
 using namespace webrtc;
 using namespace videocapturemodule;
 
-static NSArray* camera_presets = @[
-  AVCaptureSessionPreset352x288,
-  AVCaptureSessionPreset640x480,
-  AVCaptureSessionPreset1280x720
-];
-
 #define IOS_UNSUPPORTED()                                                        \
   RTC_LOG(LS_ERROR) << __FUNCTION__ << " is not supported on the iOS platform."; \
   return -1;
@@ -47,6 +41,11 @@ DeviceInfoIos::~DeviceInfoIos() {}
 int32_t DeviceInfoIos::Init() {
   // Fill in all device capabilities.
 
+  const NSArray* camera_presets = @[
+    AVCaptureSessionPreset352x288,
+    AVCaptureSessionPreset640x480,
+    AVCaptureSessionPreset1280x720
+  ];
   int deviceCount = [DeviceInfoIosObjC captureDeviceCount];
 
   for (int i = 0; i < deviceCount; i++) {