Update to Chromium //base at Chromium commit e3a753f17bac62738b0dbf0b36510f767b081e4b.

android/library_loader/library_loader_hooks.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/android/library_loader/library_loader_hooks.h"
 
 #include "base/android/command_line_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/library_loader/library_load_from_apk_status_codes.h"
 #include "base/android/library_loader/library_prefetcher.h"
@@ skipping 39 matching lines @@
 
 // The amount of time, in milliseconds, that it took to load the shared
 // libraries in the renderer. Set in
 // RegisterChromiumAndroidLinkerRendererHistogram.
 long g_renderer_library_load_time_ms = 0;
 
 } // namespace
 
 static void RegisterChromiumAndroidLinkerRendererHistogram(
     JNIEnv* env,
-    jobject jcaller,
+    const JavaParamRef<jobject>& jcaller,
     jboolean requested_shared_relro,
     jboolean load_at_fixed_address_failed,
     jlong library_load_time_ms) {
   // Note a pending histogram value for later recording.
   if (requested_shared_relro) {
     g_renderer_histogram_code = load_at_fixed_address_failed
                                 ? LFA_BACKOFF_USED : LFA_SUCCESS;
   } else {
     g_renderer_histogram_code = LFA_NOT_ATTEMPTED;
   }
@@ skipping 11 matching lines @@
   g_renderer_histogram_code = NO_PENDING_HISTOGRAM_CODE;
 
   // Record how long it took to load the shared libraries.
   UMA_HISTOGRAM_TIMES(
       "ChromiumAndroidLinker.RendererLoadTime",
       base::TimeDelta::FromMilliseconds(g_renderer_library_load_time_ms));
 }
 
 static void RecordChromiumAndroidLinkerBrowserHistogram(
     JNIEnv* env,
-    jobject jcaller,
+    const JavaParamRef<jobject>& jcaller,
     jboolean is_using_browser_shared_relros,
     jboolean load_at_fixed_address_failed,
     jint library_load_from_apk_status,
     jlong library_load_time_ms) {
   // For low-memory devices, record whether or not we successfully loaded the
   // browser at a fixed address. Otherwise just record a normal invocation.
   BrowserHistogramCode histogram_code;
   if (is_using_browser_shared_relros) {
     histogram_code = load_at_fixed_address_failed
                      ? LOW_MEMORY_LFA_BACKOFF_USED : LOW_MEMORY_LFA_SUCCESS;
@@ skipping 11 matching lines @@
 
   // Record how long it took to load the shared libraries.
   UMA_HISTOGRAM_TIMES("ChromiumAndroidLinker.BrowserLoadTime",
                       base::TimeDelta::FromMilliseconds(library_load_time_ms));
 }
 
 void SetLibraryLoadedHook(LibraryLoadedHook* func) {
   g_registration_callback = func;
 }
 
-static void InitCommandLine(JNIEnv* env,
-                            jobject jcaller,
-                            jobjectArray init_command_line) {
+static void InitCommandLine(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& jcaller,
+    const JavaParamRef<jobjectArray>& init_command_line) {
   InitNativeCommandLineFromJavaArray(env, init_command_line);
 }
 
-static jboolean LibraryLoaded(JNIEnv* env, jobject jcaller) {
+static jboolean LibraryLoaded(JNIEnv* env,
+                              const JavaParamRef<jobject>& jcaller) {
   if (g_registration_callback == NULL) {
     return true;
   }
   return g_registration_callback(env, NULL);
 }
 
 void LibraryLoaderExitHook() {
   if (g_at_exit_manager) {
     delete g_at_exit_manager;
     g_at_exit_manager = NULL;
   }
 }
 
-static jboolean ForkAndPrefetchNativeLibrary(JNIEnv* env, jclass clazz) {
+static jboolean ForkAndPrefetchNativeLibrary(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz) {
   return NativeLibraryPrefetcher::ForkAndPrefetchNativeLibrary();
 }
 
 bool RegisterLibraryLoaderEntryHook(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 void SetVersionNumber(const char* version_number) {
   g_library_version_number = strdup(version_number);
 }
 
-ScopedJavaLocalRef<jstring> GetVersionNumber(JNIEnv* env, jobject jcaller) {
+ScopedJavaLocalRef<jstring> GetVersionNumber(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& jcaller) {
   return ConvertUTF8ToJavaString(env, g_library_version_number);
 }
 
 LibraryProcessType GetLibraryProcessType(JNIEnv* env) {
   return static_cast<LibraryProcessType>(
       Java_LibraryLoader_getLibraryProcessType(env));
 }
 
 void InitAtExitManager() {
   g_at_exit_manager = new base::AtExitManager();
 }
 
 }  // namespace android
 }  // namespace base