Remove unused methods from SpdyFrameBuilder.

net/spdy/spdy_frame_builder.h

Index: net/spdy/spdy_frame_builder.h
diff --git a/net/spdy/spdy_frame_builder.h b/net/spdy/spdy_frame_builder.h
index 74cafbe0008cf15a974fa77081b45f774cd7cc02..e3f3a25fb8e40ad02093f316645c77673c0335ad 100644
--- a/net/spdy/spdy_frame_builder.h
+++ b/net/spdy/spdy_frame_builder.h
@@ -86,27 +86,7 @@ class NET_EXPORT_PRIVATE SpdyFrameBuilder {
     return true;
   }
 
-  // Returns true if the given iterator could point to data with the given
-  // length. If there is no room for the given data before the end of the
-  // payload, returns false.
-  bool IteratorHasRoomFor(const void* iter, int len) const {
-    const char* end_of_region = reinterpret_cast<const char*>(iter) + len;
-    if (len < 0 ||
-        iter < buffer_ ||
-        iter > end_of_payload() ||
-        iter > end_of_region ||
-        end_of_region > end_of_payload())
-      return false;
-
-    // Watch out for overflow in pointer calculation, which wraps.
-    return (iter <= end_of_region) && (end_of_region <= end_of_payload());
-  }
-
  protected:
-  size_t capacity() const {
-    return capacity_;
-  }
-
   const char* end_of_payload() const { return buffer_ + length_; }
 
   // Completes the write operation by padding the data with NULL bytes until it
@@ -114,11 +94,6 @@ class NET_EXPORT_PRIVATE SpdyFrameBuilder {
   // have to be called after the data is written.
   void EndWrite(char* dest, int length);
 
-  // Moves the iterator by the given number of bytes.
-  static void UpdateIter(void** iter, int bytes) {
-    *iter = static_cast<char*>(*iter) + bytes;
-  }
-
  private:
   // Returns the location that the data should be written at, or NULL if there
   // is not enough room. Call EndWrite with the returned offset and the given