Convert //base to use std::unique_ptr

chrome/browser/android/bottombar/overlay_panel_content.h

Index: chrome/browser/android/bottombar/overlay_panel_content.h
diff --git a/chrome/browser/android/bottombar/overlay_panel_content.h b/chrome/browser/android/bottombar/overlay_panel_content.h
index b25a1ba5da2cd972ce0e36bf058b4a904e6e2b8e..03457a8e8fbafaacdc14ed5125934a68091b9954 100644
--- a/chrome/browser/android/bottombar/overlay_panel_content.h
+++ b/chrome/browser/android/bottombar/overlay_panel_content.h
@@ -7,6 +7,7 @@
 
 #include "base/android/jni_android.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"

[Nico, 2016/04/04 17:14:56]

a) unused
b) why does this add scoped_ptr, not memory?

[dcheng, 2016/04/04 17:43:39]

The IWYU fixes were all automated using a poor man's version of IWYU (basically
I have a script that runs in a loop trying to build: every time it hits a
compile error, it blindly inserts an #include for scoped_ptr.h). Trying to
convert these over to std::unique_ptr<T> as well is mostly a non-goal in this
CL, since I wanted to limit the scope of the actual conversion to //base. It's
just that //base is widely used and a common avenue for IWYU violations.

While it's possible this will introduce some scoped_ptr usage in
already-converted directories, that's easy enough to clean up in the final pass.

Also, it's not unused, see line 69.

 #include "base/task/cancelable_task_tracker.h"
 #include "chrome/browser/android/contextualsearch/contextual_search_context.h"