[ios] Adds a provider API for AudioSessionController.

ios/public/provider/chrome/browser/test_chrome_browser_provider.mm

Index: ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
diff --git a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
index ee7cd51072ec4d8406e28c0c6225f7501fb0ff0e..6f89b25e24817c93b9e386e2770ac6480a2f17b0 100644
--- a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
+++ b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
@@ -11,6 +11,7 @@
 #include "base/memory/ptr_util.h"
 #include "ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h"
 #import "ios/public/provider/chrome/browser/test_updatable_resource_provider.h"
+#import "ios/public/provider/chrome/browser/voice/test_voice_search_provider.h"
 #import "ios/public/provider/chrome/browser/voice/voice_search_language.h"
 
 @interface TestStyledTextField : UITextField<TextFieldStyling>
@@ -27,7 +28,9 @@
 namespace ios {
 
 TestChromeBrowserProvider::TestChromeBrowserProvider()
-    : test_updatable_resource_provider_(new TestUpdatableResourceProvider) {}
+    : test_updatable_resource_provider_(new TestUpdatableResourceProvider),

[sdefresne, 2016/10/18 22:19:44]

nit: can you change this to use base::MakeUnique<> here too?

[rohitrao (ping after 24h), 2016/10/18 23:30:44]

Done.

+      test_voice_search_provider_(base::MakeUnique<TestVoiceSearchProvider>()) {
+}
 
 TestChromeBrowserProvider::~TestChromeBrowserProvider() {}
 
@@ -68,4 +71,8 @@ NSArray* TestChromeBrowserProvider::GetAvailableVoiceSearchLanguages() const {
   return @[ en ];
 }
 
+VoiceSearchProvider* TestChromeBrowserProvider::GetVoiceSearchProvider() {
+  return test_voice_search_provider_.get();
+}
+
 }  // namespace ios