Remove code path that passes a file handle to the renderer

Since the code now does range request without any caching
the code path for passing file handle is not used any more.

Changes:
1. Remove response_data_file in webkit_glue::ResourceResponseHead
2. Remove response_data_file in net::ResourceInfo
3. Remove code that passes file handle using IPC
4. Remove code that passes file hadnle from network layer to ResourceDispatcherHost
5. Remove MediaResourceHandler
6. Remove code in disk_cache that expose the file handle
7. Remove ChromeURLRequestContext::CreateOffTheRecordForMedia() so no more OTR request context for media, in OTR mode simply memory cache is used
8. Reset cache size for media cache to default

BUG=12249
BUG=12256

Review URL: http://codereview.chromium.org/113931

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17227 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 99 deletions

diff --git a/net/disk_cache/entry_unittest.cc b/net/disk_cache/entry_unittest.cc
index a79b3f7..e48acb5 100644
--- a/net/disk_cache/entry_unittest.cc
+++ b/net/disk_cache/entry_unittest.cc
@@ -832,102 +832,3 @@ TEST_F(DiskCacheEntryTest, MemoryOnlyDoomedEntry) {
   InitCache();
   DoomEntry();
 }
-
-// Check that we can hint an entry to use external file and the return value
-// is a valid file handle.
-TEST_F(DiskCacheEntryTest, UseExternalFile) {
-  InitCache();
-
-  disk_cache::Entry* entry;
-  ASSERT_TRUE(cache_->CreateEntry("key", &entry));
-  base::PlatformFile cache_file = entry->UseExternalFile(0);
-
-  // We should have a valid file handle.
-  EXPECT_NE(base::kInvalidPlatformFileValue, cache_file);
-  scoped_refptr<disk_cache::File> file(new disk_cache::File(cache_file));
-
-  // 4KB.
-  size_t kDataSize = 0x1000;
-  scoped_refptr<net::IOBuffer> buffer = new net::IOBuffer(kDataSize);
-
-  CacheTestFillBuffer(buffer->data(), kDataSize, false);
-  ASSERT_EQ(0U, file->GetLength());
-  ASSERT_EQ(kDataSize, static_cast<size_t>(
-      entry->WriteData(0, 0, buffer, kDataSize, NULL, false)));
-  ASSERT_EQ(kDataSize, file->GetLength());
-  entry->Close();
-}
-
-// Make sure we can use Entry::GetPlatformFile on an entry stored in an external
-// file and get a valid file handle.
-TEST_F(DiskCacheEntryTest, GetPlatformFile) {
-  InitCache();
-
-  disk_cache::Entry* entry;
-  ASSERT_TRUE(cache_->CreateEntry("key", &entry));
-  EXPECT_NE(base::kInvalidPlatformFileValue, entry->UseExternalFile(0));
-
-  size_t kDataSize = 50;
-  scoped_refptr<net::IOBuffer> buffer = new net::IOBuffer(kDataSize);
-
-  // Fill the data buffer and write it to cache.
-  CacheTestFillBuffer(buffer->data(), kDataSize, false);
-  ASSERT_EQ(kDataSize,static_cast<size_t>(
-      entry->WriteData(0, 0, buffer, kDataSize, NULL, false)));
-
-  // Close the entry.
-  entry->Close();
-
-  // Open the entry again and get it's file handle.
-  ASSERT_TRUE(cache_->OpenEntry("key", &entry));
-  base::PlatformFile cache_file = entry->GetPlatformFile(0);
-
-  // Make sure it's a valid file handle and verify the size of the file.
-  scoped_refptr<disk_cache::File> file(new disk_cache::File(cache_file));
-  ASSERT_EQ(kDataSize, file->GetLength());
-
-  entry->Close();
-}
-
-// Test the behavior of EntryImpl that small entries are kept in block files
-// or buffer, and only entries above certain size would be stored in an
-// external file, make sure GetPlatformFile() works with both cases without
-// using UseExternalFile().
-TEST_F(DiskCacheEntryTest, GetPlatformFileVariableEntrySize) {
-  InitCache();
-
-  disk_cache::Entry* entry;
-
-  // Make the buffer just larger than disk_cache::kMaxBlockSize.
-  const size_t kLargeDataSize = disk_cache::kMaxBlockSize + 1;
-  const size_t kSmallDataSize = kLargeDataSize / 2;
-  scoped_refptr<net::IOBuffer> buffer = new net::IOBuffer(kLargeDataSize);
-
-  // 1. First test with small entry.
-  ASSERT_TRUE(cache_->CreateEntry("small_entry", &entry));
-
-  CacheTestFillBuffer(buffer->data(), kSmallDataSize, false);
-  ASSERT_EQ(kSmallDataSize, static_cast<size_t>(
-      entry->WriteData(0, 0, buffer, kSmallDataSize, NULL, false)));
-
-  // Make sure we don't get an external file.
-  ASSERT_EQ(base::kInvalidPlatformFileValue, entry->GetPlatformFile(0));
-
-  entry->Close();
-
-  // 2. Test with large entry.
-  ASSERT_TRUE(cache_->CreateEntry("large_entry", &entry));
-
-  CacheTestFillBuffer(buffer->data(), kLargeDataSize, false);
-  ASSERT_EQ(kLargeDataSize, static_cast<size_t>(
-      entry->WriteData(0, 0, buffer, kLargeDataSize, NULL, false)));
-
-  base::PlatformFile cache_file = entry->GetPlatformFile(0);
-  EXPECT_NE(base::kInvalidPlatformFileValue, cache_file);
-
-  // Make sure it's a valid file handle and verify the size of the file.
-  scoped_refptr<disk_cache::File> file(new disk_cache::File(cache_file));
-  ASSERT_EQ(kLargeDataSize, file->GetLength());
-
-  entry->Close();
-}