Cherrypicks from flutter-1.20-candidate.1-tizen

* Flutter 1.20 candidate.1 (#1)
* Format documents into Google style (#2)
* Configure AOT data using new engine APIs (#3)
* Enable text_input_plugin (#4)
* Update a DEPS file (#5)
* Add a placeholder for the executable name (#7)
* Redirect stdout/stderr to dlog (#10)
* Change log tag from FLUTTER to ConsoleMessage (#11)
* Support lifecycle, localization and low memory warning. (#12)
* Clean up the API and change LOG_TAG (#13)

Co-authored-by: Xiaowei Guan <xiaowei.guan@samsung.com>
Co-authored-by: Swift Kim <swift.kim@samsung.com>
Co-authored-by: Boram Bae <boram21.bae@samsung.com>
Co-authored-by: Seungsoo Lee <seungsoo47.lee@samsung.com>
Co-authored-by: Wanchao Xu <wanchao.xu@samsung.com>
Co-authored-by: MuHong Byun <mh.byun@samsung.com>

shell/platform/linux/BUILD.gn

@@ -5,11 +5,12 @@
 assert(is_linux)
 
 import("//flutter/shell/platform/glfw/config.gni")
+import("//flutter/shell/platform/tizen/config.gni")
 import("//flutter/testing/testing.gni")
 
 group("linux") {
   deps = [
-    ":flutter_linux_gtk",
+    #":flutter_linux_gtk",
     ":publish_headers_linux",
   ]
   if (build_glfw_shell) {
@@ -19,6 +20,13 @@ group("linux") {
       "//flutter/shell/platform/glfw/client_wrapper:publish_wrapper_glfw",
     ]
   }
+  if (build_tizen_shell) {
+    deps += [
+      ":flutter_linux_tizen",
+      "//flutter/shell/platform/tizen:publish_headers_tizen",
+      #"//flutter/shell/platform/tizen/client_wrapper:publish_wrapper_tizen",
+    ]
+  }
 }
 
 # Temporary workaround for the issue describe in
@@ -41,6 +49,18 @@ if (build_glfw_shell) {
   }
 }
 
+if (build_tizen_shell) {
+  shared_library("flutter_linux_tizen") {
+    deps = [
+      "//flutter/shell/platform/tizen:flutter_tizen",
+    ]
+
+    configs += [ ":disable_fatal_link_warnings" ]
+
+    public_configs = [ "//flutter:config" ]
+  }
+}
+
 _public_headers = [
   "public/flutter_linux/fl_basic_message_channel.h",
   "public/flutter_linux/fl_binary_codec.h",
@@ -71,7 +91,7 @@ config("relative_flutter_linux_headers") {
 source_set("flutter_linux_sources") {
   public = _public_headers
 
-  configs += [ "//flutter/shell/platform/linux/config:gtk" ]
+  #configs += [ "//flutter/shell/platform/linux/config:gtk" ]
 
   sources = [
     "egl_utils.cc",
@@ -115,8 +135,8 @@ source_set("flutter_linux_sources") {
 
 source_set("flutter_linux") {
   configs += [
-    "//flutter/shell/platform/linux/config:gtk",
-    "//flutter/shell/platform/linux/config:egl",
+    #"//flutter/shell/platform/linux/config:gtk",
+    #"//flutter/shell/platform/linux/config:egl",
     "//third_party/khronos:khronos_headers",
   ]
 
@@ -156,7 +176,7 @@ executable("flutter_linux_unittests") {
 
   public_configs = [ "//flutter:config" ]
 
-  configs += [ "//flutter/shell/platform/linux/config:gtk" ]
+  #configs += [ "//flutter/shell/platform/linux/config:gtk" ]
 
   # Set flag to allow public headers to be directly included (library users should not do this)
   defines = [ "FLUTTER_LINUX_COMPILATION" ]

shell/platform/tizen/BUILD.gn

@@ -0,0 +1,122 @@
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+_public_headers = [ "public/flutter_tizen.h" ]
+
+# Any files that are built by clients (client_wrapper code, library headers for
+# implementations using this shared code, etc.) include the public headers
+# assuming they are in the include path. This configuration should be added to
+# any such code that is also built by GN to make the includes work.
+
+config("relative_flutter_tizen_headers") {
+  include_dirs = [ "public" ]
+}
+
+config("flutter_tizen_native_headers") {
+  include_dirs = [
+    "//third_party/tizen_tools/sysroot/armel/usr/include",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/base",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/dlog",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/ecore-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/ecore-wl2-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/ecore-evas-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/efl-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/eo-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/eina-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/eina-1/eina",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/ecore-input-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/ecore-imf-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/ecore-imf-evas-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/evas-1",
+    "//third_party/tizen_tools/sysroot/armel/usr/include/emile-1",
+  ]
+}
+
+# The headers are a separate source set since the client wrapper is allowed
+# to depend on the public headers, but none of the rest of the code.
+source_set("flutter_tizen_headers") {
+  public = _public_headers
+
+  public_deps =
+      [ "//flutter/shell/platform/common/cpp:common_cpp_library_headers" ]
+
+  configs +=
+      [ "//flutter/shell/platform/common/cpp:desktop_library_implementation" ]
+
+  public_configs =
+      [ "//flutter/shell/platform/common/cpp:relative_flutter_library_headers" ]
+}
+
+source_set("flutter_tizen") {
+  sources = [
+    "tizen_event_loop.cc",
+    "tizen_event_loop.h",
+    "flutter_tizen.cc",
+    "key_event_channel.cc",
+    "key_event_channel.h",
+    "tizen_embedder_engine.cc",
+    "tizen_embedder_engine.h",
+    "tizen_surface.cc",
+    "tizen_surface.h",
+    "tizen_surface_gl.cc",
+    "tizen_surface_gl.h",
+    "tizen_surface_software.cc",
+    "tizen_surface_software.h",
+    "tizen_vsync_waiter.cc",
+    "tizen_vsync_waiter.h",
+    "touch_event_channel.cc",
+    "touch_event_channel.h",
+    "text_input_plugin.h",
+    "text_input_plugin.cc",
+    "lifecycle_channel.h",
+    "lifecycle_channel.cc",
+    "localization_channel.h",
+    "localization_channel.cc",
+  ]
+
+  defines = [ "USE_RAPID_JSON" ]
+
+  configs +=
+      [ "//flutter/shell/platform/common/cpp:desktop_library_implementation" ]
+  configs +=
+      [":flutter_tizen_native_headers"]
+
+  deps = [
+    ":flutter_tizen_headers",
+    "//flutter/shell/platform/common/cpp:common_cpp",
+    "//flutter/shell/platform/common/cpp:common_cpp_input",
+    "//flutter/shell/platform/common/cpp/client_wrapper:client_wrapper",
+    "//flutter/shell/platform/embedder:embedder_as_internal_library",
+    "//third_party/rapidjson",
+  ]
+
+  lib_dirs = [ "//third_party/tizen_tools/sysroot/armel/usr/lib" ]
+
+  cflags_cc = [
+    "-Wno-newline-eof",
+    "-Wno-macro-redefined",
+    "-Wno-unused-const-variable"
+  ]
+  libs = [
+    "dlog",
+    "EGL",
+    "ecore_wl2",
+    "wayland-client",
+    "GLESv2",
+    "tdm-client",
+    "ecore",
+    "ecore_input",
+    "evas",
+    "ecore_imf",
+    "base-utils-i18n"
+  ]
+}
+
+copy("publish_headers_tizen") {
+  sources = _public_headers
+  outputs = [ "$root_out_dir/{{source_file_part}}" ]
+
+  # The Tizen header assumes the presence of the common headers.
+  deps = [ "//flutter/shell/platform/common/cpp:publish_headers" ]
+}

shell/platform/tizen/config.gni

@@ -0,0 +1,13 @@
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+declare_args() {
+  # Whether to build the Tizen shell for the host platform, if available.
+  #
+  # By default, the Tizen shell is not built if there is a native toolkit shell,
+  # but it can be enabled for supported platforms (Linux)
+  # as an extra build artifact with this flag. The native toolkit shell will
+  # still be built as well.
+  build_tizen_shell = false
+}