Add VideoCaptureDevice::GetDeviceSupportedFormats to interface + implementation for Linux and Fake

media/video/capture/video_capture_device_unittest.cc

Index: media/video/capture/video_capture_device_unittest.cc
diff --git a/media/video/capture/video_capture_device_unittest.cc b/media/video/capture/video_capture_device_unittest.cc
index 9f0f0da2a006b812de28c94e193e4d5478b9e79d..1ad9be940fbc81f869b7c0f43020062126084ca6 100644
--- a/media/video/capture/video_capture_device_unittest.cc
+++ b/media/video/capture/video_capture_device_unittest.cc
@@ -409,6 +409,22 @@ TEST_F(VideoCaptureDeviceTest, MAYBE_CaptureMjpeg) {
   device->StopAndDeAllocate();
 }
 
+TEST_F(VideoCaptureDeviceTest, GetDeviceSupportedFormats) {
+  VideoCaptureDevice::GetDeviceNames(&names_);
+  if (!names_.size()) {
+    DVLOG(1) << "No camera available. Exiting test.";
+    return;
+  }
+  VideoCaptureFormats capture_formats;
+  VideoCaptureDevice::Names::iterator names_iterator;
+  for (names_iterator = names_.begin(); names_iterator != names_.end();
+       ++names_iterator) {
+    VideoCaptureDevice::GetDeviceSupportedFormats(*names_iterator,
+                                                  &capture_formats);
+    // Nothing to test here since we cannot forecast the hardware capabilities.
+  }
+}
+
 TEST_F(VideoCaptureDeviceTest, FakeCaptureVariableResolution) {
   VideoCaptureDevice::Names names;
 
@@ -447,4 +463,23 @@ TEST_F(VideoCaptureDeviceTest, FakeCaptureVariableResolution) {
   device->StopAndDeAllocate();
 }
 
+TEST_F(VideoCaptureDeviceTest, FakeGetDeviceSupportedFormats) {
+  VideoCaptureDevice::Names names;
+  FakeVideoCaptureDevice::GetDeviceNames(&names);
+
+  VideoCaptureFormats capture_formats;
+  VideoCaptureDevice::Names::iterator names_iterator;
+
+  for (names_iterator = names.begin(); names_iterator != names.end();
+       ++names_iterator) {
+    FakeVideoCaptureDevice::GetDeviceSupportedFormats(*names_iterator,
+                                                      &capture_formats);
+    EXPECT_GE(capture_formats.size(), 1u);
+    EXPECT_EQ(capture_formats[0].width, 640);
+    EXPECT_EQ(capture_formats[0].height, 480);
+    EXPECT_EQ(capture_formats[0].color, media::PIXEL_FORMAT_I420);
+    EXPECT_GE(capture_formats[0].frame_rate, 20);
+  }
+}
+
 };  // namespace media