ImageCapture: wire |colorTemperature| set/get for Linux/Cros

media/capture/video/fake_video_capture_device.cc

Index: media/capture/video/fake_video_capture_device.cc
diff --git a/media/capture/video/fake_video_capture_device.cc b/media/capture/video/fake_video_capture_device.cc
index 139934bad5a144956705cdf8ddf2f001446fcb41..0482f359db530006da6135e8b6e29ed50c58cb8b 100644
--- a/media/capture/video/fake_video_capture_device.cc
+++ b/media/capture/video/fake_video_capture_device.cc
@@ -207,6 +207,10 @@ void FakeVideoCaptureDevice::GetPhotoCapabilities(
   photo_capabilities->white_balance_mode = mojom::MeteringMode::NONE;
   photo_capabilities->fill_light_mode = mojom::FillLightMode::NONE;
   photo_capabilities->red_eye_reduction = false;
+  photo_capabilities->color_temperature = mojom::Range::New();
+  photo_capabilities->color_temperature->current = 0;
+  photo_capabilities->color_temperature->max = 0;
+  photo_capabilities->color_temperature->min = 0;
   callback.Run(std::move(photo_capabilities));
 }