[BlobStorage] Enabling disk paging and direct storage.

storage/common/blob_storage/blob_storage_constants.cc

Index: storage/common/blob_storage/blob_storage_constants.cc
diff --git a/storage/common/blob_storage/blob_storage_constants.cc b/storage/common/blob_storage/blob_storage_constants.cc
index 2d825f4534b291080770be9ef75e3a864dcb9ced..471a4e8c7121998ab840f22d531e381c7479cf7e 100644
--- a/storage/common/blob_storage/blob_storage_constants.cc
+++ b/storage/common/blob_storage/blob_storage_constants.cc
@@ -8,6 +8,20 @@
 
 namespace storage {
 
+static_assert(kDefaultIPCMemorySize < kDefaultSharedMemorySize,
+              "IPC transport size must be smaller than shared memory size.");
+static_assert(kDefaultMinPageFileSize < kDefaultMaxPageFileSize,
+              "Min page file size must be less than max.");
+static_assert(kDefaultMinPageFileSize < kDefaultMaxBlobInMemorySpace,
+              "Page file size must be less than in-memory space.");
+
+bool BlobStorageLimits::IsValid() const {
+  return max_ipc_memory_size < max_shared_memory_size &&
+         min_page_file_size < max_file_size &&
+         min_page_file_size < max_blob_in_memory_space &&
+         effective_max_disk <= desired_max_disk;
+}
+
 bool BlobStatusIsError(BlobStatus status) {
   return static_cast<int>(status) <= static_cast<int>(BlobStatus::LAST_ERROR);
 }