imageloader currently makes a copy of component at /var/lib/imageloader/<component>/<version> which takes up more space than required. It frees up half space if imageloader can avoid copy at RegisterComponent and LoadComponent in place.
 

imageloader currently makes a copy of component at /var/lib/imageloader/<component>/<version> which takes up more space than required. It frees up half space if imageloader can avoid copy at RegisterComponent and LoadComponent in place.

Register a component:
* for preinstalled component, imageloader RegisterComponent is skipped. 
* for update-able component, imageloader RegisterComponent creates latest_version file in udd component root. 

Load a component: 
* call imageloader LoadComponentAtPath to load component (for both preinstalled and update-able components)
 

imageloader currently makes a copy of component at /var/lib/imageloader/<component>/<version> which takes up more space than required. It frees up half space if imageloader can avoid copy at RegisterComponent and LoadComponent in place.

Register a component:
* Avoid calling imageloader RegisterComponent
* for update-able components, create latest_version file in udd component folder (like what imageloader does in RegisterComponent).

Load a component: 
* call imageloader LoadComponentAtPath to load component (for both preinstalled and update-able components)
 

imageloader currently makes a copy of component at /var/lib/imageloader/<component>/<version> which takes up more space than required. It frees up half space if imageloader can avoid copy at RegisterComponent and LoadComponent in place.

Register a component:
* Avoid calling imageloader RegisterComponent
* OnCustomInstall does nothing which requires no callback and current threading model works fine.

Load a component: 
* uses imageloader API LoadComponentAtPath to load a component directly in-place.
* expose component install path from ComponentUpdateService so that LoadComponentAtPath can use.

benefits:
1. fewer space requirement: component updater & imageloader shares the same copy.
2. no threading issue any more since no time consuming copying happens in OnCustomInstall (which has to be async).
 

imageloader currently makes a copy of component at /var/lib/imageloader/<component>/<version> which takes up more space than required. It frees up half space if imageloader can avoid copy at RegisterComponent and LoadComponent in place.

Register a component:
* Avoid calling imageloader RegisterComponent
* OnCustomInstall does nothing which requires no callback and current threading model works fine.

Load a component: 
* uses imageloader API LoadComponentAtPath to load a component directly in-place.
* expose component install path from ComponentUpdateService so that LoadComponentAtPath can use.

benefits:
1. fewer space requirement: component updater & imageloader shares the same copy.
2. no threading issue any more since time consuming copying no longer happens in OnCustomInstall (which has to be async).
 

imageloader currently makes a copy of component at /var/lib/imageloader/<component>/<version> which takes up more space than required. It frees up half space if imageloader can avoid copy at RegisterComponent and LoadComponent in place.

Register a component:
* Avoid calling imageloader RegisterComponent
* OnCustomInstall does nothing which requires no callback and current threading model works fine.

Load a component: 
* uses imageloader API LoadComponentAtPath to load a component directly in-place.
* cache component install path from browser_process_platform_part_chromeos (from ComponentReady) so that LoadComponentAtPath can use.

benefits:
1. fewer space requirement: component updater & imageloader shares the same copy.
2. no threading issue any more since time consuming copying no longer happens in OnCustomInstall (which has to be async).