Add a new field "source" in launchData of chrome.app.runtime.onLaunched() to trace launch source.

apps/launcher.h

Index: apps/launcher.h
diff --git a/apps/launcher.h b/apps/launcher.h
index eb2d98fb265bb0bd33daa6a89aa9f63343f23c18..b1bcd9e4e095595a99b43f8847df4d6af50faee8 100644
--- a/apps/launcher.h
+++ b/apps/launcher.h
@@ -8,6 +8,8 @@
 #include <string>
 #include <vector>
 
+#include "extensions/common/constants.h"
+
 class GURL;
 class Profile;
 
@@ -29,7 +31,8 @@ namespace apps {
 void LaunchPlatformAppWithCommandLine(Profile* profile,
                                       const extensions::Extension* extension,
                                       const base::CommandLine& command_line,
-                                      const base::FilePath& current_directory);
+                                      const base::FilePath& current_directory,
+                                      extensions::AppLaunchSource source);
 
 // Launches the platform app |extension| by issuing an onLaunched event
 // with the contents of |file_path| available through the launch data.
@@ -41,6 +44,11 @@ void LaunchPlatformAppWithPath(Profile* profile,
 void LaunchPlatformApp(Profile* profile,

[benwells, 2014/10/21 03:51:58]

Can't you just add the source parameter to this function instead of creating a
new function? That way you'll know you've covered all cases.

[cylee1, 2014/10/21 13:41:16]

Done.

                        const extensions::Extension* extension);
 
+// Launches the platform app |extension| with no launch data.
+void LaunchPlatformAppWithSource(Profile* profile,
+                                 const extensions::Extension* extension,
+                                 extensions::AppLaunchSource source);
+
 // Launches the platform app |extension| with |handler_id| and the contents of
 // |file_paths| available through the launch data. |handler_id| corresponds to
 // the id of the file_handlers item in the manifest that resulted in a match