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

media/capture/video/fake_video_capture_device_unittest.cc

Index: media/capture/video/fake_video_capture_device_unittest.cc
diff --git a/media/capture/video/fake_video_capture_device_unittest.cc b/media/capture/video/fake_video_capture_device_unittest.cc
index 4f2a0144d5dc24c6fc7f2b910001669c530c89fb..8830c7dc1213fc4604b5becefc9632464a66e9f3 100644
--- a/media/capture/video/fake_video_capture_device_unittest.cc
+++ b/media/capture/video/fake_video_capture_device_unittest.cc
@@ -342,6 +342,9 @@ TEST_F(FakeVideoCaptureDeviceTest, GetAndSetCapabilities) {
   EXPECT_EQ(mojom::MeteringMode::NONE, capabilities->white_balance_mode);
   EXPECT_EQ(mojom::FillLightMode::NONE, capabilities->fill_light_mode);
   EXPECT_FALSE(capabilities->red_eye_reduction);
+  EXPECT_EQ(0, capabilities->color_temperature->min);
+  EXPECT_EQ(0, capabilities->color_temperature->max);
+  EXPECT_EQ(0, capabilities->color_temperature->current);
 
   // Set options: zoom to the maximum value.
   const int max_zoom_value = capabilities->zoom->max;