Prefetch the native library from native code by parsing /proc/pid/maps.

base/android/java/src/org/chromium/base/library_loader/LibraryLoader.java

Index: base/android/java/src/org/chromium/base/library_loader/LibraryLoader.java
diff --git a/base/android/java/src/org/chromium/base/library_loader/LibraryLoader.java b/base/android/java/src/org/chromium/base/library_loader/LibraryLoader.java
index 484c6bc56d55596cdf77610e3cbf8e541c4d3d67..bff9b9e638e009795dc58d54f8d020ce9fd8d315 100644
--- a/base/android/java/src/org/chromium/base/library_loader/LibraryLoader.java
+++ b/base/android/java/src/org/chromium/base/library_loader/LibraryLoader.java
@@ -573,4 +573,10 @@ public class LibraryLoader {
     // Get the version of the native library. This is needed so that we can check we
     // have the right version before initializing the (rest of the) JNI.
     private native String nativeGetVersionNumber();
+
+    // Finds the ranges corresponding to the native library pages, and forks a

[petrcermak, 2015/03/23 15:00:47]

I would say "... and then forks ..." to be a little clearer about the order.

[petrcermak, 2015/03/23 15:00:47]

nit: There shouldn't be a comma after "and".

[Benoit L, 2015/03/23 16:41:57]

Done.

[Benoit L, 2015/03/23 16:41:58]

Done.

+    // new process to prefetch these pages. The process then terminates. Note

[petrcermak, 2015/03/23 15:00:47]

I'd say "The new process..." to make it clear which process will terminate.

[Benoit L, 2015/03/23 16:41:57]

Done.

+    // that getting the ranges involves file operations in /proc/ and is done in
+    // the calling thread.

[petrcermak, 2015/03/23 15:00:47]

I would add "of the original process" after "calling thread".

[Benoit L, 2015/03/23 16:41:57]

Done.

+    public static native void nativeForkAndPrefetchNativeLibrary();
 }