Cast:Moving netwrok sender related code to a designated folder

media/cast/cast_defines.h

Index: media/cast/cast_defines.h
diff --git a/media/cast/cast_defines.h b/media/cast/cast_defines.h
index 944a49d8700b5c26fcb45ac45c2d487055a7c526..aad7ae2b1d8db9facdb6cae58073763733fadfbc 100644
--- a/media/cast/cast_defines.h
+++ b/media/cast/cast_defines.h
@@ -18,9 +18,9 @@ namespace cast {
 
 const int64 kDontShowTimeoutMs = 33;
 const float kDefaultCongestionControlBackOff = 0.875f;
-const uint32 kStartFrameId = GG_UINT32_C(0xffffffff);
 const uint32 kVideoFrequency = 90000;
 const int64 kSkippedFramesCheckPeriodkMs = 10000;
+const uint32 kStartFrameId = GG_UINT32_C(0xffffffff);
 
 // Number of skipped frames threshold in fps (as configured) per period above.
 const int kSkippedFramesThreshold = 3;
@@ -140,69 +140,6 @@ inline base::TimeTicks ConvertNtpToTimeTicks(uint32 ntp_seconds,
   return base::TimeTicks::UnixEpoch() + elapsed_since_unix_epoch;
 }
 
-class FrameIdWrapHelper {
- public:
-  FrameIdWrapHelper()
-      : first_(true),
-        frame_id_wrap_count_(0),
-        range_(kLowRange) {}
-
-  uint32 MapTo32bitsFrameId(const uint8 over_the_wire_frame_id) {
-    if (first_) {
-      first_ = false;
-      if (over_the_wire_frame_id == 0xff) {
-        // Special case for startup.
-        return kStartFrameId;
-      }
-    }
-
-    uint32 wrap_count = frame_id_wrap_count_;
-    switch (range_) {
-      case kLowRange:
-        if (over_the_wire_frame_id > kLowRangeThreshold &&
-            over_the_wire_frame_id < kHighRangeThreshold) {
-          range_ = kMiddleRange;
-        }
-        if (over_the_wire_frame_id > kHighRangeThreshold) {
-          // Wrap count was incremented in High->Low transition, but this frame
-          // is 'old', actually from before the wrap count got incremented.
-          --wrap_count;
-        }
-        break;
-      case kMiddleRange:
-        if (over_the_wire_frame_id > kHighRangeThreshold) {
-          range_ = kHighRange;
-        }
-        break;
-      case kHighRange:
-        if (over_the_wire_frame_id < kLowRangeThreshold) {
-          // Wrap-around detected.
-          range_ = kLowRange;
-          ++frame_id_wrap_count_;
-          // Frame triggering wrap-around so wrap count should be incremented as
-          // as well to match |frame_id_wrap_count_|.
-          ++wrap_count;
-        }
-        break;
-    }
-    return (wrap_count << 8) + over_the_wire_frame_id;
-  }
-
- private:
-  enum Range {
-    kLowRange,
-    kMiddleRange,
-    kHighRange,
-  };
-
-  static const uint8 kLowRangeThreshold = 0x0f;
-  static const uint8 kHighRangeThreshold = 0xf0;
-
-  bool first_;
-  uint32 frame_id_wrap_count_;
-  Range range_;
-};
-
 inline std::string GetAesNonce(uint32 frame_id, const std::string& iv_mask) {
   std::string aes_nonce(kAesBlockSize, 0);