Add missing content namespace to the android library loader.

content/public/browser/android_library_loader_hooks.h

Index: content/public/browser/android_library_loader_hooks.h
diff --git a/content/public/browser/android_library_loader_hooks.h b/content/public/browser/android_library_loader_hooks.h
index 7bb52d4685ac2d2492b377edcbf02c66eebf2429..5670b1a4b27b6a51ac3492772e095b2ab63265aa 100644
--- a/content/public/browser/android_library_loader_hooks.h
+++ b/content/public/browser/android_library_loader_hooks.h
@@ -9,10 +9,14 @@
 
 #include "base/basictypes.h"
 
+namespace content {
+
 // Registers the callbacks that allows the entry point of the library to be
 // exposed to the calling java code.  This handles only registering the content
 // specific callbacks.  Any application specific JNI bindings should happen
 // once the native library has fully loaded.
 bool RegisterLibraryLoaderEntryHook(JNIEnv* env);
 
+}  // namespace content
+
 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_LIBRARY_LOADER_HOOKS_H_