Componentize upload_list.{h,cc} and crash_upload_list.{h,cc}.

Componentize upload_list.{h,cc} and crash_upload_list.{h,cc} so
that the code can be shared with iOS. Do not move the factory
function into the component (as it depends on //content) nor
the system specific sub-classes of CrashUploadList (as they depends
on //components/crash that cannot be used on iOS).

Remove the dependency on content::BrowserThread by injecting the
base::SequencedWorkerPool, passing the base::SequencedTaskRunner
to LoadUploadListAndInformDelegateOfCompletion and checking the
thread using base::ThreadChecker.

BUG=516343

Review URL: https://codereview.chromium.org/1269073002

Cr-Commit-Position: refs/heads/master@{#342079}

1 files changed, 6 insertions, 21 deletions

diff --git a/chrome/browser/crash_upload_list.h b/chrome/browser/crash_upload_list.h
index c81caef..f73d7cc 100644
--- a/chrome/browser/crash_upload_list.h
+++ b/chrome/browser/crash_upload_list.h
@@ -5,27 +5,12 @@
 #ifndef CHROME_BROWSER_CRASH_UPLOAD_LIST_H_
 #define CHROME_BROWSER_CRASH_UPLOAD_LIST_H_
 
-#include "chrome/browser/upload_list.h"
+#include "base/memory/ref_counted.h"
+#include "components/upload_list/crash_upload_list.h"
 
-// An upload list manager for crash reports from breakpad.
-class CrashUploadList : public UploadList {
- public:
-  // Static factory method that creates the platform-specific implementation
-  // of the crash upload list with the given callback delegate.
-  static CrashUploadList* Create(Delegate* delegate);
-
-  // Should match kReporterLogFilename in
-  // breakpad/src/client/apple/Framework/BreakpadDefines.h.
-  static const char* kReporterLogFilename;
-
-  // Creates a new crash upload list with the given callback delegate.
-  CrashUploadList(Delegate* delegate, const base::FilePath& upload_log_path);
-
- protected:
-  ~CrashUploadList() override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(CrashUploadList);
-};
+// Factory that creates the platform-specific implementation of the crash
+// upload list with the given callback delegate.
+scoped_refptr<CrashUploadList> CreateCrashUploadList(
+    UploadList::Delegate* delegate);
 
 #endif  // CHROME_BROWSER_CRASH_UPLOAD_LIST_H_