Make embedding the sandbox code the default

PiperOrigin-RevId: 257778382
Change-Id: Ib6dc472355092c08b905e42978efe7f47703c128

sandboxed_api/bazel/sapi.bzl

@@ -145,7 +145,7 @@ def sapi_library(
         lib,
         lib_name,
         namespace = "",
-        embed = False,
+        embed = True,
         add_default_deps = True,
         srcs = [],
         hdrs = [],

sandboxed_api/docs/library.md

@@ -23,7 +23,7 @@ sapi_library(
     srcs = [],   # Extra code compiled with the SAPI library
     hdrs = []    # Leave empty if embedded SAPI libraries are used, and the
                  # default sandbox policy is sufficient.
-    embed = True,
+    embed = True,  # This is the default
     functions = [
         "deflateInit_",
         "deflate",
@@ -48,7 +48,7 @@ sapi_library(
   in the library.
 * **`embed`** - whether the SAPI library should be embedded inside host code,
   so the SAPI Sandbox can be initialized with the
-  `::sapi::Sandbox::Sandbox(FileToc*)` constructor.
+  `::sapi::Sandbox::Sandbox(FileToc*)` constructor. This is the default.
 * **`lib`** - (mandatory) the library target you want to sandbox and expose to
     the host code.
 * **`lib_name`** - (mandatory) name of the object which is proxying your library

sandboxed_api/examples/stringop/lib/BUILD.bazel

@@ -40,7 +40,6 @@ sapi_library(
     name = "stringop-sapi",
     srcs = [],
     hdrs = ["sandbox.h"],
-    embed = True,
     functions = [
         "duplicate_string",
         "reverse_string",

sandboxed_api/examples/sum/lib/BUILD.bazel

@@ -44,7 +44,6 @@ sapi_library(
     name = "sum-sapi",
     srcs = [],
     hdrs = ["sandbox.h"],
-    embed = True,
     functions = [
         "sum",
         "sums",

sandboxed_api/examples/zlib/BUILD.bazel

@@ -23,7 +23,6 @@ sapi_library(
     name = "zlib-sapi",
     srcs = [],
     hdrs = [],
-    embed = True,
     functions = [
         "deflateInit_",
         "deflate",

sandboxed_api/tools/generator2/BUILD

@@ -60,7 +60,6 @@ cc_library(
 # Targets for testing if generated code compiles
 sapi_library(
     name = "tests_sapi_generator",
-    embed = True,
     input_files = [
         "testdata/tests.cc",
         "testdata/tests2.cc",