[wasm] Adding feature to JIT a wasm function at runtime and hook up the compiled code into the indi…

src/wasm/wasm-module.h

Index: src/wasm/wasm-module.h
diff --git a/src/wasm/wasm-module.h b/src/wasm/wasm-module.h
index 4e573ab4eba65996a5b77bf3d6990558ac5cacad..8b7981d399bf0718903d80a06d1285acc8458f5d 100644
--- a/src/wasm/wasm-module.h
+++ b/src/wasm/wasm-module.h
@@ -187,7 +187,7 @@ struct WasmModule {
   // switch to libc-2.21 or higher.
   base::SmartPointer<base::Semaphore> pending_tasks;
 
-  WasmModule();
+  explicit WasmModule(byte* module_start = nullptr);

[John, 2016/07/13 19:56:59]

optional: It probably does not matter, but what do you think of using delagate
constructors here, in lieu of default argument value:

WasmModule() : WasmModule(nullptr) {}
explicit WasmModule(byte* module_start);

[ritesht, 2016/07/13 23:58:45]

Done.

 
   // Get a string stored in the module bytes representing a name.
   WasmName GetName(uint32_t offset, uint32_t length) const {