ImageCapture: Implement TakePhoto() for Linux/CrOs

media/capture/BUILD.gn

Index: media/capture/BUILD.gn
diff --git a/media/capture/BUILD.gn b/media/capture/BUILD.gn
index 989a550a62d751a0579c3e972ccea4fc8a4ec1e2..28caf2898aa2407d9a8eecf8188c7bec75b1dcdb 100644
--- a/media/capture/BUILD.gn
+++ b/media/capture/BUILD.gn
@@ -31,6 +31,7 @@ component("capture") {
     "video/file_video_capture_device_factory.cc",
     "video/file_video_capture_device_factory.h",
     "video/linux/v4l2_capture_delegate.cc",
+    "video/linux/v4l2_capture_delegate.h",
     "video/linux/video_capture_device_chromeos.cc",
     "video/linux/video_capture_device_chromeos.h",
     "video/linux/video_capture_device_factory_linux.cc",
@@ -78,6 +79,7 @@ component("capture") {
     "//media",
     "//media/mojo/interfaces:image_capture",
     "//skia",
+    "//third_party/libyuv",

[mcasas, 2016/09/16 03:50:36]

Since this dependency is only necessary for
Linux/Cros, move it to somewhere between
l.95 and 136 and add an OS guard:

if (is_linux || is_chromeos) {
  deps += ["//third_party/libyuv"]
} 

[xianglu, 2016/09/16 18:22:33]

Done.

     "//ui/display",
     "//ui/gfx",
   ]