remove chromeos-only TtsControllerDelegate

Refs: https://chromium-review.googlesource.com/c/chromium/src/+/2255314

chromium_src/BUILD.gn

@@ -153,13 +153,6 @@ static_library("chrome") {
     }
   }
 
-  if (enable_tts) {
-    sources += [
-      "//chrome/browser/speech/tts_controller_delegate_impl.cc",
-      "//chrome/browser/speech/tts_controller_delegate_impl.h",
-    ]
-  }
-
   if (enable_widevine) {
     sources += [
       "//chrome/renderer/media/chrome_key_systems.cc",

patches/chromium/.patches

@@ -44,7 +44,6 @@ notification_provenance.patch
 content_browser_main_loop.patch
 dump_syms.patch
 command-ismediakey.patch
-tts.patch
 printing.patch
 support_mixed_sandbox_with_zygote.patch
 fix_disable_usage_of_abort_report_np_in_mas_builds.patch

patches/chromium/tts.patch

@@ -1,32 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Heilig Benedek <benecene@gmail.com>
-Date: Thu, 18 Oct 2018 17:08:03 -0700
-Subject: tts.patch
-
-* Adds patch in //chrome/browser/speech/tts_controller_impl.cc
-  to disable calls using chrome profile class.
-* Adds patch in //chrome/browser/speech/tts_message_filter.cc
-  to remove reference to browser context when its signaled for
-  destruction from content layer.
-
-diff --git a/chrome/browser/speech/tts_controller_delegate_impl.cc b/chrome/browser/speech/tts_controller_delegate_impl.cc
-index a0503e80805d47167cbce9deb848cdf14024f17a..da970c937f75b2048b035d34d977fbe67a428a39 100644
---- a/chrome/browser/speech/tts_controller_delegate_impl.cc
-+++ b/chrome/browser/speech/tts_controller_delegate_impl.cc
-@@ -103,6 +103,7 @@ void TtsControllerDelegateImpl::UpdateUtteranceDefaultsFromPrefs(
- 
- const PrefService* TtsControllerDelegateImpl::GetPrefService(
-     content::TtsUtterance* utterance) {
-+#if 0
-   // The utterance->GetBrowserContext() is null in tests.
-   if (!utterance->GetBrowserContext())
-     return nullptr;
-@@ -110,6 +111,8 @@ const PrefService* TtsControllerDelegateImpl::GetPrefService(
-   const Profile* profile =
-       Profile::FromBrowserContext(utterance->GetBrowserContext());
-   return profile ? profile->GetPrefs() : nullptr;
-+#endif
-+  return nullptr;
- }
- 
- const base::DictionaryValue* TtsControllerDelegateImpl::GetLangToVoicePref(

shell/browser/electron_browser_client.cc

@@ -39,6 +39,8 @@
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/site_instance.h"
+#include "content/public/browser/tts_controller.h"
+#include "content/public/browser/tts_platform.h"
 #include "content/public/common/content_descriptors.h"
 #include "content/public/common/content_paths.h"
 #include "content/public/common/content_switches.h"
@@ -129,10 +131,6 @@
 #include "shell/browser/fake_location_provider.h"
 #endif  // BUILDFLAG(OVERRIDE_LOCATION_PROVIDER)
 
-#if BUILDFLAG(ENABLE_TTS)
-#include "chrome/browser/speech/tts_controller_delegate_impl.h"
-#endif  // BUILDFLAG(ENABLE_TTS)
-
 #if BUILDFLAG(ENABLE_PRINTING)
 #include "chrome/browser/printing/printing_message_filter.h"
 #endif  // BUILDFLAG(ENABLE_PRINTING)
@@ -566,13 +564,8 @@ ElectronBrowserClient::CreateSpeechRecognitionManagerDelegate() {
   return new ElectronSpeechRecognitionManagerDelegate;
 }
 
-content::TtsControllerDelegate*
-ElectronBrowserClient::GetTtsControllerDelegate() {
-#if BUILDFLAG(ENABLE_TTS)
-  return TtsControllerDelegateImpl::GetInstance();
-#else
+content::TtsPlatform* ElectronBrowserClient::GetTtsPlatform() {
   return nullptr;
-#endif
 }
 
 void ElectronBrowserClient::OverrideWebkitPrefs(

shell/browser/electron_browser_client.h

@@ -87,7 +87,8 @@ class ElectronBrowserClient : public content::ContentBrowserClient,
   void RenderProcessWillLaunch(content::RenderProcessHost* host) override;
   content::SpeechRecognitionManagerDelegate*
   CreateSpeechRecognitionManagerDelegate() override;
-  content::TtsControllerDelegate* GetTtsControllerDelegate() override;
+  content::TtsPlatform* GetTtsPlatform() override;
+
   void OverrideWebkitPrefs(content::RenderViewHost* render_view_host,
                            content::WebPreferences* prefs) override;
   SiteInstanceForNavigationType ShouldOverrideSiteInstanceForNavigation(