Deflake ImageWriterUtilityClient browsertest and clients

chrome/browser/extensions/api/image_writer_private/operation_nonchromeos.cc

Index: chrome/browser/extensions/api/image_writer_private/operation_nonchromeos.cc
diff --git a/chrome/browser/extensions/api/image_writer_private/operation_nonchromeos.cc b/chrome/browser/extensions/api/image_writer_private/operation_nonchromeos.cc
index b19330f921defd41df80af183c1c7ee0990b7cac..8b257b5a0fbec273317fd707096104b6c1351d65 100644
--- a/chrome/browser/extensions/api/image_writer_private/operation_nonchromeos.cc
+++ b/chrome/browser/extensions/api/image_writer_private/operation_nonchromeos.cc
@@ -32,17 +32,10 @@ void Operation::Write(const base::Closure& continuation) {
     return;
   }
 
-  BrowserThread::PostTask(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(
-          &ImageWriterUtilityClient::Write,
-          image_writer_client_,
-          base::Bind(&Operation::WriteImageProgress, this, file_size),
-          base::Bind(&Operation::CompleteAndContinue, this, continuation),
-          base::Bind(&Operation::Error, this),
-          image_path_,
-          device_path_));
+  image_writer_client_->Write(
+      base::Bind(&Operation::WriteImageProgress, this, file_size),
+      base::Bind(&Operation::CompleteAndContinue, this, continuation),
+      base::Bind(&Operation::Error, this), image_path_, device_path_);
 }
 
 void Operation::VerifyWrite(const base::Closure& continuation) {
@@ -61,17 +54,10 @@ void Operation::VerifyWrite(const base::Closure& continuation) {
     return;
   }
 
-  BrowserThread::PostTask(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(
-          &ImageWriterUtilityClient::Verify,
-          image_writer_client_,
-          base::Bind(&Operation::WriteImageProgress, this, file_size),
-          base::Bind(&Operation::CompleteAndContinue, this, continuation),
-          base::Bind(&Operation::Error, this),
-          image_path_,
-          device_path_));
+  image_writer_client_->Verify(
+      base::Bind(&Operation::WriteImageProgress, this, file_size),
+      base::Bind(&Operation::CompleteAndContinue, this, continuation),
+      base::Bind(&Operation::Error, this), image_path_, device_path_);
 }
 
 }  // namespace image_writer