1 files changed, 0 insertions, 87 deletions
diff --git a/content/renderer/media/cache_util.cc b/content/renderer/media/cache_util.cc
deleted file mode 100644
index d79e692..0000000
--- a/content/renderer/media/cache_util.cc
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/renderer/media/cache_util.h"
-
-#include <string>
-
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_util.h"
-#include "base/time/time.h"
-#include "net/http/http_util.h"
-#include "net/http/http_version.h"
-#include "third_party/WebKit/public/platform/WebCString.h"
-#include "third_party/WebKit/public/platform/WebString.h"
-#include "third_party/WebKit/public/platform/WebURLResponse.h"
-
-using base::Time;
-using base::TimeDelta;
-using net::HttpVersion;
-using blink::WebURLResponse;
-
-namespace content {
-
-enum { kHttpOK = 200, kHttpPartialContent = 206 };
-
-uint32 GetReasonsForUncacheability(const WebURLResponse& response) {
-  uint32 reasons = 0;
-  const int code = response.httpStatusCode();
-  const int version = response.httpVersion();
-  const HttpVersion http_version =
-      version == WebURLResponse::HTTP_1_1 ? HttpVersion(1, 1) :
-      version == WebURLResponse::HTTP_1_0 ? HttpVersion(1, 0) :
-      version == WebURLResponse::HTTP_0_9 ? HttpVersion(0, 9) :
-      HttpVersion();
-  if (code != kHttpOK && code != kHttpPartialContent)
-    reasons |= kNoData;
-  if (http_version < HttpVersion(1, 1) && code == kHttpPartialContent)
-    reasons |= kPre11PartialResponse;
-  if (code == kHttpPartialContent &&
-      !net::HttpUtil::HasStrongValidators(
-          http_version,
-          response.httpHeaderField("etag").utf8(),
-          response.httpHeaderField("Last-Modified").utf8(),
-          response.httpHeaderField("Date").utf8())) {
-    reasons |= kNoStrongValidatorOnPartialResponse;
-  }
-
-  std::string cache_control_header =
-      response.httpHeaderField("cache-control").utf8();
-  base::StringToLowerASCII(&cache_control_header);
-  if (cache_control_header.find("no-cache") != std::string::npos)
-    reasons |= kNoCache;
-  if (cache_control_header.find("no-store") != std::string::npos)
-    reasons |= kNoStore;
-  if (cache_control_header.find("must-revalidate") != std::string::npos)
-    reasons |= kHasMustRevalidate;
-
-  const TimeDelta kMinimumAgeForUsefulness =
-      TimeDelta::FromSeconds(3600);  // Arbitrary value.
-
-  const char kMaxAgePrefix[] = "max-age=";
-  const size_t kMaxAgePrefixLen = arraysize(kMaxAgePrefix) - 1;
-  if (cache_control_header.substr(0, kMaxAgePrefixLen) == kMaxAgePrefix) {
-    int64 max_age_seconds;
-    base::StringToInt64(
-        base::StringPiece(cache_control_header.begin() + kMaxAgePrefixLen,
-                          cache_control_header.end()),
-        &max_age_seconds);
-    if (TimeDelta::FromSeconds(max_age_seconds) < kMinimumAgeForUsefulness)
-      reasons |= kShortMaxAge;
-  }
-
-  Time date;
-  Time expires;
-  if (Time::FromString(response.httpHeaderField("Date").utf8().data(), &date) &&
-      Time::FromString(response.httpHeaderField("Expires").utf8().data(),
-                       &expires) &&
-      date > Time() && expires > Time() &&
-      (expires - date) < kMinimumAgeForUsefulness) {
-    reasons |= kExpiresTooSoon;
-  }
-
-  return reasons;
-}
-
-}  // namespace content