Add framerate to VideoSinkWants and ability to signal on overuse

webrtc/media/base/fakevideocapturer.h

Index: webrtc/media/base/fakevideocapturer.h
diff --git a/webrtc/media/base/fakevideocapturer.h b/webrtc/media/base/fakevideocapturer.h
index b5bfd3496476e9e576a2c46683935ad9d9e357db..34f9dbf48b72cfb6d6ab0afad405e8b1480facea 100644
--- a/webrtc/media/base/fakevideocapturer.h
+++ b/webrtc/media/base/fakevideocapturer.h
@@ -66,8 +66,9 @@ class FakeVideoCapturer : public cricket::VideoCapturer {
                               GetCaptureFormat()->fourcc);
   }
   bool CaptureCustomFrame(int width, int height, uint32_t fourcc) {
-    // default to 30fps
-    return CaptureCustomFrame(width, height, 33333333, fourcc);
+    // Default to 30fps.
+    return CaptureCustomFrame(width, height, rtc::kNumNanosecsPerSec / 30,
+                              fourcc);
   }
   bool CaptureCustomFrame(int width,
                           int height,
@@ -92,8 +93,11 @@ class FakeVideoCapturer : public cricket::VideoCapturer {
     // AdaptFrame, and the test case
     // VideoCapturerTest.SinkWantsMaxPixelAndMaxPixelCountStepUp
     // depends on this.
-    if (AdaptFrame(width, height, 0, 0, &adapted_width, &adapted_height,
-                   &crop_width, &crop_height, &crop_x, &crop_y, nullptr)) {
+    if (AdaptFrame(width, height,
+                   next_timestamp_ / rtc::kNumNanosecsPerMicrosec,
+                   next_timestamp_ / rtc::kNumNanosecsPerMicrosec,
+                   &adapted_width, &adapted_height, &crop_width, &crop_height,
+                   &crop_x, &crop_y, nullptr)) {
       rtc::scoped_refptr<webrtc::I420Buffer> buffer(
           webrtc::I420Buffer::Create(adapted_width, adapted_height));
       buffer->InitializeData();