Let ViEEncoder handle resolution changes.

webrtc/media/base/fakevideocapturer.h

 /*
  *  Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MEDIA_BASE_FAKEVIDEOCAPTURER_H_
 #define WEBRTC_MEDIA_BASE_FAKEVIDEOCAPTURER_H_
 
 #include <string.h>
 
 #include <memory>
 #include <vector>
 
 #include "webrtc/base/timeutils.h"
 #include "webrtc/media/base/videocapturer.h"
 #include "webrtc/media/base/videocommon.h"
 #include "webrtc/media/base/videoframe.h"
 
 namespace cricket {
 
 // Fake video capturer that allows the test to manually pump in frames.
 class FakeVideoCapturer : public cricket::VideoCapturer {
  public:
-  FakeVideoCapturer(bool is_screencast)
+  explicit FakeVideoCapturer(bool is_screencast)
       : running_(false),
         initial_timestamp_(rtc::TimeNanos()),
         next_timestamp_(rtc::kNumNanosecsPerMillisec),
         is_screencast_(is_screencast),
         rotation_(webrtc::kVideoRotation_0) {
     // Default supported formats. Use ResetSupportedFormats to over write.
     std::vector<cricket::VideoFormat> formats;
     formats.push_back(cricket::VideoFormat(1280, 720,
         cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
     formats.push_back(cricket::VideoFormat(640, 480,
@@ skipping 62 matching lines @@
               width, height);
     }
     next_timestamp_ += timestamp_interval;
 
     return true;
   }
 
   sigslot::signal1<FakeVideoCapturer*> SignalDestroyed;
 
   cricket::CaptureState Start(const cricket::VideoFormat& format) override {
-    cricket::VideoFormat supported;
-    if (GetBestCaptureFormat(format, &supported)) {
-      SetCaptureFormat(&supported);
-    }
+    SetCaptureFormat(&format);
     running_ = true;
     SetCaptureState(cricket::CS_RUNNING);
     return cricket::CS_RUNNING;
   }
   void Stop() override {
     running_ = false;
     SetCaptureFormat(NULL);
     SetCaptureState(cricket::CS_STOPPED);
   }
   bool IsRunning() override { return running_; }
@@ skipping 22 matching lines @@
   int64_t initial_timestamp_;
   int64_t next_timestamp_;
   const bool is_screencast_;
   rtc::Optional<bool> needs_denoising_;
   webrtc::VideoRotation rotation_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_FAKEVIDEOCAPTURER_H_