Use OzonePlatform::InitParams everywhere.

Remove the deprecated function that uses default InitParams. Add the
params in the remaining callsites and set |single_process| correctly for
tests. video_decode_accelerator_unittest.cc sets |single_process| to
false, as the test runs with Ozone DRM on CrOS devices.

Bug: 620934, 700142
Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: Iaac92d25eba7c9e052c250e84fdef2f46ecea7ee
Reviewed-on: https://chromium-review.googlesource.com/667720
Commit-Queue: kylechar <kylechar@chromium.org>
Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Reviewed-by: Dan Sanders <sandersd@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#502731}

media/gpu/video_decode_accelerator_unittest.cc

@@ -1823,7 +1823,9 @@ class VDATestSuite : public base::TestSuite {
                 new media::VideoDecodeAcceleratorTestEnvironment()));
 
 #if defined(OS_CHROMEOS)
-    ui::OzonePlatform::InitializeForUI();
+    ui::OzonePlatform::InitParams params;
+    params.single_process = false;
+    ui::OzonePlatform::InitializeForUI(params);
 #endif
 
 #if BUILDFLAG(USE_VAAPI)

ui/compositor/test/test_suite.cc

@@ -35,7 +35,9 @@ void CompositorTestSuite::Initialize() {
   gl::GLSurfaceTestSupport::InitializeOneOff();
 
 #if defined(USE_OZONE)
-  ui::OzonePlatform::InitializeForUI();
+  OzonePlatform::InitParams params;
+  params.single_process = true;
+  OzonePlatform::InitializeForUI(params);
 #endif
 
   gfx::RegisterPathProvider();

ui/ozone/demo/ozone_demo.cc

@@ -352,7 +352,9 @@ int main(int argc, char** argv) {
   base::MessageLoopForUI message_loop;
   base::TaskScheduler::CreateAndStartWithDefaultParams("OzoneDemo");
 
-  ui::OzonePlatform::InitializeForUI();
+  ui::OzonePlatform::InitParams params;
+  params.single_process = true;
+  ui::OzonePlatform::InitializeForUI(params);
   ui::KeyboardLayoutEngineManager::GetKeyboardLayoutEngine()
       ->SetCurrentLayoutByName("us");
 

ui/ozone/public/ozone_platform.cc

@@ -33,12 +33,6 @@ OzonePlatform::~OzonePlatform() {
   SetNativeInputInjectorFactory(nullptr);
 }
 
-// static
-void OzonePlatform::InitializeForUI() {
-  const InitParams params;
-  OzonePlatform::InitializeForUI(params);
-}
-
 // static
 void OzonePlatform::InitializeForUI(const InitParams& args) {
   EnsureInstance();

ui/ozone/public/ozone_platform.h

@@ -80,11 +80,6 @@ class OZONE_EXPORT OzonePlatform : public SystemInputInjectorFactory {
   // platform selected at runtime, e.g. ::GetMessageLoopTypeForGpu.
   static OzonePlatform* EnsureInstance();
 
-  // Initializes the subsystems/resources necessary for the UI process (e.g.
-  // events, etc.)
-  // TODO(rjkroege): Remove deprecated entry point (http://crbug.com/620934)
-  static void InitializeForUI();
-
   // Initializes the subsystems/resources necessary for the UI process (e.g.
   // events) with additional properties to customize the ozone platform
   // implementation. Ozone will not retain InitParams after returning from