Significantly cleans up the ImageWriter Operation class and subclasses.

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

Index: chrome/browser/extensions/api/image_writer_private/operation_manager.cc
diff --git a/chrome/browser/extensions/api/image_writer_private/operation_manager.cc b/chrome/browser/extensions/api/image_writer_private/operation_manager.cc
index 839e1553abaf7dc3d63fa75530b6bd6493d312a2..34c5beaacd4fb09adec4c0a44d9d2635861c3bb5 100644
--- a/chrome/browser/extensions/api/image_writer_private/operation_manager.cc
+++ b/chrome/browser/extensions/api/image_writer_private/operation_manager.cc
@@ -59,10 +59,8 @@ void OperationManager::Shutdown() {
 void OperationManager::StartWriteFromUrl(
     const ExtensionId& extension_id,
     GURL url,
-    content::RenderViewHost* rvh,
     const std::string& hash,
-    bool saveImageAsDownload,
-    const std::string& storage_unit_id,
+    const std::string& device_path,
     const Operation::StartWriteCallback& callback) {
   OperationMap::iterator existing_operation = operations_.find(extension_id);
 
@@ -73,11 +71,10 @@ void OperationManager::StartWriteFromUrl(
   scoped_refptr<Operation> operation(
       new WriteFromUrlOperation(weak_factory_.GetWeakPtr(),
                                 extension_id,
-                                rvh,
+                                profile_->GetRequestContext(),
                                 url,
                                 hash,
-                                saveImageAsDownload,
-                                storage_unit_id));
+                                device_path));
   operations_[extension_id] = operation;
   BrowserThread::PostTask(BrowserThread::FILE,
                           FROM_HERE,
@@ -88,7 +85,7 @@ void OperationManager::StartWriteFromUrl(
 void OperationManager::StartWriteFromFile(
     const ExtensionId& extension_id,
     const base::FilePath& path,
-    const std::string& storage_unit_id,
+    const std::string& device_path,
     const Operation::StartWriteCallback& callback) {
   OperationMap::iterator existing_operation = operations_.find(extension_id);
 
@@ -96,11 +93,8 @@ void OperationManager::StartWriteFromFile(
     return callback.Run(false, error::kOperationAlreadyInProgress);
   }
 
-  scoped_refptr<Operation> operation(
-      new WriteFromFileOperation(weak_factory_.GetWeakPtr(),
-                                 extension_id,
-                                 path,
-                                 storage_unit_id));
+  scoped_refptr<Operation> operation(new WriteFromFileOperation(
+      weak_factory_.GetWeakPtr(), extension_id, path, device_path));
   operations_[extension_id] = operation;
   BrowserThread::PostTask(BrowserThread::FILE,
                           FROM_HERE,
@@ -126,7 +120,7 @@ void OperationManager::CancelWrite(
 
 void OperationManager::DestroyPartitions(
     const ExtensionId& extension_id,
-    const std::string& storage_unit_id,
+    const std::string& device_path,
     const Operation::StartWriteCallback& callback) {
   OperationMap::iterator existing_operation = operations_.find(extension_id);
 
@@ -134,10 +128,8 @@ void OperationManager::DestroyPartitions(
     return callback.Run(false, error::kOperationAlreadyInProgress);
   }
 
-  scoped_refptr<Operation> operation(
-      new DestroyPartitionsOperation(weak_factory_.GetWeakPtr(),
-                                     extension_id,
-                                     storage_unit_id));
+  scoped_refptr<Operation> operation(new DestroyPartitionsOperation(
+      weak_factory_.GetWeakPtr(), extension_id, device_path));
   operations_[extension_id] = operation;
   BrowserThread::PostTask(BrowserThread::FILE,
                           FROM_HERE,
@@ -149,7 +141,6 @@ void OperationManager::OnProgress(const ExtensionId& extension_id,
                                   image_writer_api::Stage stage,
                                   int progress) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DVLOG(2) << "progress - " << stage << " at " << progress << "%";
 
   image_writer_api::ProgressInfo info;
   info.stage = stage;