Revert of Plumb activation time to main

cc/output/begin_frame_args.cc

Index: cc/output/begin_frame_args.cc
diff --git a/cc/output/begin_frame_args.cc b/cc/output/begin_frame_args.cc
index c6ff88d1e7aafc92aa50c88cea9018cbc5332c0d..ae595450857d753617200f8b5fc839c1a1f5334a 100644
--- a/cc/output/begin_frame_args.cc
+++ b/cc/output/begin_frame_args.cc
@@ -25,10 +25,6 @@
 
 constexpr uint64_t BeginFrameArgs::kInvalidFrameNumber;
 constexpr uint64_t BeginFrameArgs::kStartingFrameNumber;
-constexpr uint32_t BeginFrameArgs::kDefaultSourceFrameNumber;
-
-BeginFrameArgs::BeginFrameArgs(const BeginFrameArgs& other) = default;
-BeginFrameArgs::~BeginFrameArgs() = default;
 
 BeginFrameArgs::BeginFrameArgs()
     : frame_time(base::TimeTicks()),
@@ -41,7 +37,6 @@
 
 BeginFrameArgs::BeginFrameArgs(uint32_t source_id,
                                uint64_t sequence_number,
-                               uint32_t source_frame_number,
                                base::TimeTicks frame_time,
                                base::TimeTicks deadline,
                                base::TimeDelta interval,
@@ -59,7 +54,6 @@
 BeginFrameArgs BeginFrameArgs::Create(BeginFrameArgs::CreationLocation location,
                                       uint32_t source_id,
                                       uint64_t sequence_number,
-                                      uint32_t source_frame_number,
                                       base::TimeTicks frame_time,
                                       base::TimeTicks deadline,
                                       base::TimeDelta interval,
@@ -67,12 +61,11 @@
   DCHECK_NE(type, BeginFrameArgs::INVALID);
   DCHECK_NE(type, BeginFrameArgs::BEGIN_FRAME_ARGS_TYPE_MAX);
 #ifdef NDEBUG
-  return BeginFrameArgs(source_id, sequence_number, source_frame_number,
-                        frame_time, deadline, interval, type);
+  return BeginFrameArgs(source_id, sequence_number, frame_time, deadline,
+                        interval, type);
 #else
-  BeginFrameArgs args =
-      BeginFrameArgs(source_id, sequence_number, source_frame_number,
-                     frame_time, deadline, interval, type);
+  BeginFrameArgs args = BeginFrameArgs(source_id, sequence_number, frame_time,
+                                       deadline, interval, type);
   args.created_from = location;
   return args;
 #endif