Create blobs from Disk Cache entries.

content/common/resource_messages.cc

Index: content/common/resource_messages.cc
diff --git a/content/common/resource_messages.cc b/content/common/resource_messages.cc
index 2f86ae2ecd750dd7e144a5a9ebd8ed55e986c748..9cadbfffd7f2cec29e134f80a85c27d49d851b96 100644
--- a/content/common/resource_messages.cc
+++ b/content/common/resource_messages.cc
@@ -56,13 +56,20 @@ void ParamTraits<storage::DataElement>::Write(Message* m, const param_type& p) {
       WriteParam(m, p.expected_modification_time());
       break;
     }
-    default: {
-      DCHECK(p.type() == storage::DataElement::TYPE_BLOB);
+    case storage::DataElement::TYPE_BLOB: {
       WriteParam(m, p.blob_uuid());
       WriteParam(m, p.offset());
       WriteParam(m, p.length());
       break;
     }
+    case storage::DataElement::TYPE_DISK_CACHE_ENTRY: {
+      NOTREACHED() << "Can't be sent by IPC.";
+      break;
+    }
+    case storage::DataElement::TYPE_UNKNOWN: {
+      NOTREACHED();
+      break;
+    }
   }
 }
 
@@ -113,8 +120,7 @@ bool ParamTraits<storage::DataElement>::Read(const Message* m,
                                  expected_modification_time);
       break;
     }
-    default: {
-      DCHECK(type == storage::DataElement::TYPE_BLOB);
+    case storage::DataElement::TYPE_BLOB: {
       std::string blob_uuid;
       uint64 offset, length;
       if (!ReadParam(m, iter, &blob_uuid))
@@ -126,6 +132,14 @@ bool ParamTraits<storage::DataElement>::Read(const Message* m,
       r->SetToBlobRange(blob_uuid, offset, length);
       break;
     }
+    case storage::DataElement::TYPE_DISK_CACHE_ENTRY: {
+      NOTREACHED() << "Can't be sent by IPC.";
+      break;
+    }
+    case storage::DataElement::TYPE_UNKNOWN: {
+      NOTREACHED();
+      break;
+    }
   }
   return true;
 }