Support asynchronous patching operations in the component updater.

chrome/browser/component_updater/component_patcher_win.cc

Index: chrome/browser/component_updater/component_patcher_win.cc
diff --git a/chrome/browser/component_updater/component_patcher_win.cc b/chrome/browser/component_updater/component_patcher_win.cc
index 20160b0e025629fb0b5efb09d13fa8b331bbd2e6..61bbd6163c7d7c5d0a451e8f7f0e314981f98c5f 100644
--- a/chrome/browser/component_updater/component_patcher_win.cc
+++ b/chrome/browser/component_updater/component_patcher_win.cc
@@ -61,7 +61,7 @@ base::FilePath FindSetupProgram() {
 // encountered errors, and kDeltaPatchProcessFailure if there was an error
 // when running the patch code out of process. In the error case, detailed error
 // information could be returned in the error parameter.
-ComponentUnpacker::Error ComponentPatcherWin::Patch(
+component_updater::Error ComponentPatcherWin::Patch(
     PatchType patch_type,
     const base::FilePath& input_file,
     const base::FilePath& patch_file,
@@ -71,7 +71,7 @@ ComponentUnpacker::Error ComponentPatcherWin::Patch(
 
   const base::FilePath exe_path = FindSetupProgram();
   if (exe_path.empty())
-    return ComponentUnpacker::kDeltaPatchProcessFailure;
+    return component_updater::kDeltaPatchProcessFailure;
 
   const std::string patch_type_str(PatchTypeToCommandLineSwitch(patch_type));
 
@@ -88,7 +88,7 @@ ComponentUnpacker::Error ComponentPatcherWin::Patch(
   if (!job ||
       !base::SetJobObjectLimitFlags(job, JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE)) {
     *error = GetLastError();
-    return ComponentUnpacker::kDeltaPatchProcessFailure;
+    return component_updater::kDeltaPatchProcessFailure;
   }
 
   base::LaunchOptions launch_options;
@@ -104,11 +104,11 @@ ComponentUnpacker::Error ComponentPatcherWin::Patch(
   if (!base::LaunchProcess(setup_path, launch_options, &ph) ||
       !base::WaitForExitCode(ph, &exit_code)) {
     *error = GetLastError();
-    return ComponentUnpacker::kDeltaPatchProcessFailure;
+    return component_updater::kDeltaPatchProcessFailure;
   }
 
   *error = exit_code;
-  return *error ? ComponentUnpacker::kDeltaOperationFailure :
-                  ComponentUnpacker::kNone;
+  return *error ? component_updater::kDeltaOperationFailure :
+                  component_updater::kNone;
 }