New resolution change policies for desktop and tab capture.

media/base/video_capture_types.cc

Index: media/base/video_capture_types.cc
diff --git a/media/base/video_capture_types.cc b/media/base/video_capture_types.cc
index cc5f8408f5ed111f073d7535c7b163f52566fc6c..78d90854a15d8001b5c4a9fccba5a4fd07fff428 100644
--- a/media/base/video_capture_types.cc
+++ b/media/base/video_capture_types.cc
@@ -20,6 +20,12 @@ VideoCaptureFormat::VideoCaptureFormat(const gfx::Size& frame_size,
       frame_rate(frame_rate),
       pixel_format(pixel_format) {}
 
+bool VideoCaptureFormat::operator==(const VideoCaptureFormat& other) const {
+  return frame_size == other.frame_size &&
+      frame_rate == other.frame_rate &&
+      pixel_format == other.pixel_format;
+}
+
 bool VideoCaptureFormat::IsValid() const {
   return (frame_size.width() < media::limits::kMaxDimension) &&
          (frame_size.height() < media::limits::kMaxDimension) &&
@@ -108,5 +114,11 @@ std::string VideoCaptureFormat::PixelFormatToString(VideoPixelFormat format) {
 }
 
 VideoCaptureParams::VideoCaptureParams()
-    : resolution_change_policy(RESOLUTION_POLICY_FIXED) {}
+    : resolution_change_policy(RESOLUTION_POLICY_FIXED_RESOLUTION) {}
+
+bool VideoCaptureParams::operator==(const VideoCaptureParams& other) const {
+  return requested_format == other.requested_format &&
+      resolution_change_policy == other.resolution_change_policy;
+}
+
 }  // namespace media