rename initWithFlutterView to initWithController (#9208)

diff --git a/packages/flutter_tools/templates/create/ios.tmpl/Runner/AppDelegate.m.tmpl b/packages/flutter_tools/templates/create/ios.tmpl/Runner/AppDelegate.m.tmpl
index de5dd48..6ba55b1 100644
--- a/packages/flutter_tools/templates/create/ios.tmpl/Runner/AppDelegate.m.tmpl
+++ b/packages/flutter_tools/templates/create/ios.tmpl/Runner/AppDelegate.m.tmpl
@@ -15,7 +15,7 @@
 {{#withPluginHook}}
   FlutterViewController *flutterController =
       (FlutterViewController *)self.window.rootViewController;
-  _{{pluginProjectName}} = [[{{pluginClass}} alloc] initWithFlutterView:flutterController];
+  _{{pluginProjectName}} = [[{{pluginClass}} alloc] initWithController:flutterController];
 {{/withPluginHook}}
     return YES;
 }
diff --git a/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.h.tmpl b/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.h.tmpl
index e412050..819c2ef 100644
--- a/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.h.tmpl
+++ b/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.h.tmpl
@@ -1,5 +1,5 @@
 #import <Flutter/Flutter.h>
 
 @interface {{pluginClass}} : NSObject
-- initWithFlutterView:(FlutterViewController *)flutterView;
+- initWithController:(FlutterViewController *)controller;
 @end
diff --git a/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.m.tmpl b/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.m.tmpl
index 3e3da38..e5e9c60 100644
--- a/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.m.tmpl
+++ b/packages/flutter_tools/templates/plugin/ios.tmpl/Classes/pluginClass.m.tmpl
@@ -3,12 +3,12 @@
 @implementation {{pluginClass}} {
 }
 
-- (instancetype)initWithFlutterView:(FlutterViewController *)flutterView {
+- (instancetype)initWithController:(FlutterViewController *)controller {
   self = [super init];
   if (self) {
     FlutterMethodChannel *channel = [FlutterMethodChannel
         methodChannelWithName:@"{{projectName}}"
-           binaryMessenger:flutterView];
+           binaryMessenger:controller];
     [channel setMethodCallHandler:^(FlutterMethodCall *call,
                                     FlutterResultReceiver result) {
       if ([@"getPlatformVersion" isEqualToString:call.method]) {