Android: Add chrome-specific dynamic linker.

base/android/sys_utils.cc

Index: base/android/sys_utils.cc
diff --git a/base/android/sys_utils.cc b/base/android/sys_utils.cc
index c23125390dab446885527f5f57b2bf11d692c455..9f87230061a05bdc5c197a99d0c44c9b109765b8 100644
--- a/base/android/sys_utils.cc
+++ b/base/android/sys_utils.cc
@@ -7,8 +7,6 @@
 #include "base/sys_info.h"
 #include "jni/SysUtils_jni.h"
 
-const int64 kLowEndMemoryThreshold = 1024 * 1024 * 512; // 512 mb.
-
 // Defined and called by JNI
 static jboolean IsLowEndDevice(JNIEnv* env, jclass clazz) {
   return base::android::SysUtils::IsLowEndDevice();
@@ -17,9 +15,10 @@ static jboolean IsLowEndDevice(JNIEnv* env, jclass clazz) {
 namespace base {
 namespace android {
 
-bool SysUtils::Register(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
+const int64 kLowEndMemoryThreshold =
+    ANDROID_LOW_MEMORY_DEVICE_THRESHOLD_MB * 1024 * 1024;
+
+bool SysUtils::Register(JNIEnv* env) { return RegisterNativesImpl(env); }
 
 bool SysUtils::IsLowEndDevice() {
   return SysInfo::AmountOfPhysicalMemory() <= kLowEndMemoryThreshold;