On Android, move Wifi SSID extraction to a Java implementation

On some Android devices, the device will restart right
after the browser is launched. This is due to a kernel bug on
these devices when using the Linux GetWifiSSID implementation,
which causes a kernel panic and device restart.

To avoid this, a Java-based implementation is used for Android
devices, which avoids this. Examples of affected devices include:
HTC One S
Lenovo A820
Asus ZenFone 2
MediaPad 10 FHD

R=bengr@chromium.org,rch@chromium.org
BUG=555067
TEST=Take the problem device, install browser and start it, wait for
10 seconds. Make 10 experiments, cleaning data before each run.
Device should not reboot.

Review URL: https://codereview.chromium.org/1633733005

Cr-Commit-Position: refs/heads/master@{#374743}

1 files changed, 7 insertions, 0 deletions

diff --git a/net/android/network_library.cc b/net/android/network_library.cc
index eb2376e..6837ddc 100644
--- a/net/android/network_library.cc
+++ b/net/android/network_library.cc
@@ -143,6 +143,13 @@ bool GetIsRoaming() {
       base::android::GetApplicationContext());
 }
 
+std::string GetWifiSSID() {
+  return base::android::ConvertJavaStringToUTF8(
+      Java_AndroidNetworkLibrary_getWifiSSID(
+          base::android::AttachCurrentThread(),
+          base::android::GetApplicationContext()));
+}
+
 bool RegisterNetworkLibrary(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }