Remove RWHV::SetBounds() from the public API, and make comments clearer.

content/browser/media/capture/web_contents_video_capture_device_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/media/capture/web_contents_video_capture_device.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 99 matching lines @@
         yuv_color_(kDrawColorNotSet) {}
 
   ~CaptureTestView() override {}
 
   // TestRenderWidgetHostView overrides.
   gfx::Rect GetViewBounds() const override {
     return fake_bounds_;
   }
 
   void SetSize(const gfx::Size& size) override {
-    SetBounds(gfx::Rect(fake_bounds_.origin(), size));
+    RequestTopLevelBoundsInScreen(gfx::Rect(fake_bounds_.origin(), size));
   }
 
-  void SetBounds(const gfx::Rect& rect) override {
+  void RequestTopLevelBoundsInScreen(const gfx::Rect& rect) override {
     fake_bounds_ = rect;
   }
 
   bool CanCopyToVideoFrame() const override { return true; }
 
   void CopyFromCompositingSurfaceToVideoFrame(
       const gfx::Rect& src_subrect,
       const scoped_refptr<media::VideoFrame>& target,
       const base::Callback<void(const gfx::Rect&, bool)>& callback) override {
     media::FillYUV(target.get(), SkColorGetR(yuv_color_),
@@ skipping 875 matching lines @@
   for (int i = 0; i < 3; ++i) {
     SimulateRefreshFrameRequest();
     ASSERT_NO_FATAL_FAILURE(client_observer()->WaitForNextColor(SK_ColorGREEN));
   }
 
   device()->StopAndDeAllocate();
 }
 
 }  // namespace
 }  // namespace content