Update prefix for CRIWVWebMainDelegate.

ios/web_view/internal/cwv_web_main_delegate.mm

Index: ios/web_view/internal/cwv_web_main_delegate.mm
diff --git a/ios/web_view/internal/criwv_web_main_delegate.mm b/ios/web_view/internal/cwv_web_main_delegate.mm
similarity index 72%
rename from ios/web_view/internal/criwv_web_main_delegate.mm
rename to ios/web_view/internal/cwv_web_main_delegate.mm
index a1190b0e5998d945257324d5d90276904b569aa3..7576b46a5aacbe8ed2098ee5b7f408fd09a0fdc4 100644
--- a/ios/web_view/internal/criwv_web_main_delegate.mm
+++ b/ios/web_view/internal/cwv_web_main_delegate.mm
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#import "ios/web_view/internal/criwv_web_main_delegate.h"
+#import "ios/web_view/internal/cwv_web_main_delegate.h"
 
 #include "base/memory/ptr_util.h"
 #import "ios/web_view/internal/cwv_web_client.h"
@@ -14,12 +14,12 @@
 
 namespace ios_web_view {
 
-CRIWVWebMainDelegate::CRIWVWebMainDelegate(id<CWVDelegate> delegate)
+CWVWebMainDelegate::CWVWebMainDelegate(id<CWVDelegate> delegate)
     : delegate_(delegate) {}
 
-CRIWVWebMainDelegate::~CRIWVWebMainDelegate() {}
+CWVWebMainDelegate::~CWVWebMainDelegate() {}
 
-void CRIWVWebMainDelegate::BasicStartupComplete() {
+void CWVWebMainDelegate::BasicStartupComplete() {
   web_client_ = base::MakeUnique<CWVWebClient>(delegate_);
   web::SetWebClient(web_client_.get());
 }