Use function from libbase instead.

Bug: 77342154
Test: atest libprotoutil_test && atest incidentd_test with
libprotoutil.so pushed to device

Change-Id: I38d200f2495b00f632722ddddf9ccab76c147cc4
diff --git a/libs/protoutil/Android.bp b/libs/protoutil/Android.bp
index 7ad83ca..a36bf80 100644
--- a/libs/protoutil/Android.bp
+++ b/libs/protoutil/Android.bp
@@ -33,6 +33,7 @@
     export_include_dirs: ["include"],
 
     shared_libs: [
+        "libbase",
         "libcutils",
         "liblog",
     ],
diff --git a/libs/protoutil/src/ProtoOutputStream.cpp b/libs/protoutil/src/ProtoOutputStream.cpp
index 22b9709..3fee7e4 100644
--- a/libs/protoutil/src/ProtoOutputStream.cpp
+++ b/libs/protoutil/src/ProtoOutputStream.cpp
@@ -17,6 +17,7 @@
 
 #include <inttypes.h>
 
+#include <android-base/file.h>
 #include <android/util/protobuf.h>
 #include <android/util/ProtoOutputStream.h>
 #include <cutils/log.h>
@@ -467,19 +468,6 @@
     return mBuffer.size();
 }
 
-static bool write_all(int fd, uint8_t const* buf, size_t size)
-{
-    while (size > 0) {
-        ssize_t amt = ::write(fd, buf, size);
-        if (amt < 0) {
-            return false;
-        }
-        size -= amt;
-        buf += amt;
-    }
-    return true;
-}
-
 bool
 ProtoOutputStream::flush(int fd)
 {
@@ -488,7 +476,7 @@
 
     EncodedBuffer::iterator it = mBuffer.begin();
     while (it.readBuffer() != NULL) {
-        if (!write_all(fd, it.readBuffer(), it.currentToRead())) return false;
+        if (!android::base::WriteFully(fd, it.readBuffer(), it.currentToRead())) return false;
         it.rp()->move(it.currentToRead());
     }
     return true;