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 586060f169fdac71b838effc7e976607e8f528ae..234e04ae5bb66efe3c5cf041832153fe150e4bcd 100644
--- a/media/video/capture/video_capture_device_unittest.cc
+++ b/media/video/capture/video_capture_device_unittest.cc
@@ -68,6 +68,8 @@ class MockFrameObserver : public media::VideoCaptureDevice::EventHandler {
   MOCK_METHOD0(OnErr, void());
   MOCK_METHOD1(OnFrameInfo, void(const VideoCaptureCapability&));
   MOCK_METHOD1(OnFrameInfoChanged, void(const VideoCaptureCapability&));
+  MOCK_METHOD1(OnDeviceSupportedFormatsEnumerated,
+               void(const VideoCaptureFormats& formats));
 
   explicit MockFrameObserver(
       base::Closure frame_cb)
@@ -121,6 +123,7 @@ class VideoCaptureDeviceTest : public testing::Test {
 #endif
   scoped_ptr<MockFrameObserver> frame_observer_;
   VideoCaptureDevice::Names names_;
+  VideoCaptureFormats capture_formats_;
   scoped_ptr<base::MessageLoop> loop_;
 };
 
@@ -270,7 +273,7 @@ TEST_F(VideoCaptureDeviceTest, ReAllocateCamera) {
     // The device (if it is an async implementation) may or may not get as far
     // as the OnFrameInfo() step; we're intentionally not going to wait for it
     // to get that far.
-    ON_CALL(*frame_observer, OnFrameInfo(_));
+    EXPECT_CALL(*frame_observer, OnFrameInfo(_)).Times(AnyNumber());
     device->AllocateAndStart(requested_format,
                              frame_observer.PassAs<EventHandler>());
     device->StopAndDeAllocate();
@@ -450,4 +453,23 @@ TEST_F(VideoCaptureDeviceTest, FakeCaptureVariableResolution) {
   device->StopAndDeAllocate();
 }
 
+TEST_F(VideoCaptureDeviceTest, GetDeviceSupportedFormats) {
+  VideoCaptureDevice::Names names;
+
+  FakeVideoCaptureDevice::GetDeviceNames(&names);
+  scoped_ptr<VideoCaptureDevice> device(
+      FakeVideoCaptureDevice::Create(names.front()));
+  ASSERT_TRUE(device.get() != NULL);
+  EXPECT_CALL(*frame_observer_, OnDeviceSupportedFormatsEnumerated(_))
+      .Times(1)
+      .WillOnce(SaveArg<0>(&capture_formats_));
+  device->GetDeviceSupportedFormats(frame_observer_.PassAs<EventHandler>());
+
+  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