Rename |m_callback| to |callback_| in IDL bindings.

third_party/WebKit/Source/bindings/templates/callback_function.cpp.tmpl

 {% from 'utilities.cpp.tmpl' import v8_value_to_local_cpp_value %}
 {% filter format_blink_cpp_source_code %}
 
 {% include 'copyright_block.txt' %}
 
 #include "{{cpp_class}}.h"
 
 {% for filename in cpp_includes %}
 #include "{{filename}}"
 {% endfor %}
 
 namespace blink {
 
 // static
 {{cpp_class}}* {{cpp_class}}::Create(ScriptState* scriptState, v8::Local<v8::Value> callback) {
   if (IsUndefinedOrNull(callback))
     return nullptr;
   return new {{cpp_class}}(scriptState, v8::Local<v8::Function>::Cast(callback));
 }
 
 {{cpp_class}}::{{cpp_class}}(ScriptState* scriptState, v8::Local<v8::Function> callback)
     : script_state_(scriptState),
-    m_callback(scriptState->GetIsolate(), this, callback) {
-  DCHECK(!m_callback.IsEmpty());
+    callback_(scriptState->GetIsolate(), this, callback) {
+  DCHECK(!callback_.IsEmpty());
 }
 
 DEFINE_TRACE_WRAPPERS({{cpp_class}}) {
-  visitor->TraceWrappers(m_callback.Cast<v8::Value>());
+  visitor->TraceWrappers(callback_.Cast<v8::Value>());
 }
 
 bool {{cpp_class}}::call({{argument_declarations | join(', ')}}) {
-  if (m_callback.IsEmpty())
+  if (callback_.IsEmpty())
     return false;
 
   if (!script_state_->ContextIsValid())
     return false;
 
   ExecutionContext* context = ExecutionContext::From(script_state_.Get());
   DCHECK(context);
   if (context->IsContextSuspended() || context->IsContextDestroyed())
     return false;
 
@@ skipping 14 matching lines @@
   {% if arguments %}
   v8::Local<v8::Value> argv[] = { {{arguments | join(', ', 'argument_name')}} };
   {% else %}
   {# Empty array initializers are illegal, and don\'t compile in MSVC. #}
   v8::Local<v8::Value> *argv = nullptr;
   {% endif %}
   v8::TryCatch exceptionCatcher(isolate);
   exceptionCatcher.SetVerbose(true);
 
   v8::Local<v8::Value> v8ReturnValue;
-  if (!V8ScriptRunner::CallFunction(m_callback.NewLocal(isolate),
+  if (!V8ScriptRunner::CallFunction(callback_.NewLocal(isolate),
                                     context,
                                     thisValue,
                                     {{arguments | length}},
                                     argv,
                                     isolate).ToLocal(&v8ReturnValue)) {
     return false;
   }
 
   {% if return_value %}
   {{v8_value_to_local_cpp_value(return_value) | indent(2)}}
   returnValue = cppValue;
   {% endif %}
   return true;
 }
 
 {{cpp_class}}* NativeValueTraits<{{cpp_class}}>::NativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
   {{cpp_class}}* nativeValue = {{cpp_class}}::Create(ScriptState::Current(isolate), value);
   if (!nativeValue) {
     exceptionState.ThrowTypeError(ExceptionMessages::FailedToConvertJSValue(
         "{{callback_function_name}}"));
   }
   return nativeValue;
 }
 
 }  // namespace blink
 
 {% endfilter %}{# format_blink_cpp_source_code #}