Fix boundary check problems in socket_host.cc.

content/browser/renderer_host/p2p/socket_host.h

Index: content/browser/renderer_host/p2p/socket_host.h
diff --git a/content/browser/renderer_host/p2p/socket_host.h b/content/browser/renderer_host/p2p/socket_host.h
index 86eff5dfb717afd099ea491a8d98a0051b3f58c5..d80b438ba1725838cb58bf052f528e49671b1033 100644
--- a/content/browser/renderer_host/p2p/socket_host.h
+++ b/content/browser/renderer_host/p2p/socket_host.h
@@ -33,18 +33,20 @@ namespace packet_processing_helpers {
 // called. It will try to do, 1. update absolute send time extension header
 // if present with current time and 2. update HMAC in RTP packet.
 // If abs_send_time is 0, ApplyPacketOption will get current time from system.
-CONTENT_EXPORT bool ApplyPacketOptions(char* data, int length,
+CONTENT_EXPORT bool ApplyPacketOptions(char* data, size_t length,
                                        const rtc::PacketOptions& options,
                                        uint32 abs_send_time);
 
 // Helper method which finds RTP ofset and length if the packet is encapsulated
 // in a TURN Channel Message or TURN Send Indication message.
-CONTENT_EXPORT bool GetRtpPacketStartPositionAndLength(const char* data,
-                                                       int length,
-                                                       int* rtp_start_pos,
-                                                       int* rtp_packet_length);
+CONTENT_EXPORT bool GetRtpPacketStartPositionAndLength(
+    const char* data,
+    size_t length,
+    size_t* rtp_start_pos,
+    size_t* rtp_packet_length);
+
 // Helper method which updates absoulute send time extension if present.
-CONTENT_EXPORT bool UpdateRtpAbsSendTimeExtn(char* rtp, int length,
+CONTENT_EXPORT bool UpdateRtpAbsSendTimeExtn(char* rtp, size_t length,
                                              int extension_id,
                                              uint32 abs_send_time);