[BlobStorage] Enabling disk paging and direct storage.

content/browser/blob_storage/chrome_blob_storage_context.cc

Index: content/browser/blob_storage/chrome_blob_storage_context.cc
diff --git a/content/browser/blob_storage/chrome_blob_storage_context.cc b/content/browser/blob_storage/chrome_blob_storage_context.cc
index bd02e5144b284e6ac7ed596ee767469e0210550d..0d397c3bab4abb74275057654744b05dfd825af3 100644
--- a/content/browser/blob_storage/chrome_blob_storage_context.cc
+++ b/content/browser/blob_storage/chrome_blob_storage_context.cc
@@ -20,6 +20,7 @@
 #include "content/public/browser/browser_thread.h"
 #include "storage/browser/blob/blob_data_builder.h"
 #include "storage/browser/blob/blob_data_handle.h"
+#include "storage/browser/blob/blob_memory_controller.h"
 #include "storage/browser/blob/blob_storage_context.h"
 
 using base::FilePath;
@@ -123,6 +124,12 @@ void ChromeBlobStorageContext::InitializeOnIOThread(
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   context_.reset(new BlobStorageContext(std::move(blob_storage_dir),
                                         std::move(file_task_runner)));
+  // Signal the BlobMemoryController when it's appropriate to calculate its
+  // storage limits.
+  BrowserThread::PostAfterStartupTask(
+      FROM_HERE, BrowserThread::GetTaskRunnerForThread(BrowserThread::IO),
+      base::Bind(&storage::BlobMemoryController::CalculateBlobStorageLimits,
+                 context_->mutable_memory_controller()->GetWeakPtr()));
 }
 
 std::unique_ptr<BlobHandle> ChromeBlobStorageContext::CreateMemoryBackedBlob(