Remove now-unnecessary .obj() in Java method calls.

blimp/client/core/android/blimp_client_context_impl_android.cc

Index: blimp/client/core/android/blimp_client_context_impl_android.cc
diff --git a/blimp/client/core/android/blimp_client_context_impl_android.cc b/blimp/client/core/android/blimp_client_context_impl_android.cc
index 3eb10d66189bd6ccb8cb03a5b34218d005df9366..5f51d68e176183db9a253f6264e40df4c07bae04 100644
--- a/blimp/client/core/android/blimp_client_context_impl_android.cc
+++ b/blimp/client/core/android/blimp_client_context_impl_android.cc
@@ -52,7 +52,7 @@ BlimpClientContextImplAndroid::BlimpClientContextImplAndroid(
 
 BlimpClientContextImplAndroid::~BlimpClientContextImplAndroid() {
   Java_BlimpClientContextImpl_clearNativePtr(
-      base::android::AttachCurrentThread(), java_obj_.obj());
+      base::android::AttachCurrentThread(), java_obj_);
 }
 
 base::android::ScopedJavaLocalRef<jobject>
@@ -74,7 +74,7 @@ BlimpClientContextImplAndroid::CreateBlimpContentsJava(JNIEnv* env,
 GURL BlimpClientContextImplAndroid::GetAssignerURL() {
   JNIEnv* env = base::android::AttachCurrentThread();
   base::android::ScopedJavaLocalRef<jstring> jurl =
-      Java_BlimpClientContextImpl_getAssignerUrl(env, java_obj_.obj());
+      Java_BlimpClientContextImpl_getAssignerUrl(env, java_obj_);
   GURL assigner_url = GURL(ConvertJavaStringToUTF8(env, jurl));
   DCHECK(assigner_url.is_valid());
   return assigner_url;