SF: Inline SurfaceFlinger::initializeDisplays

Bug: 150889228
Test: Boot
Change-Id: I92d42042196f5c67fc61b423853cc205aac81e97
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 267637b..0cab2e8 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -497,14 +497,13 @@
     // the window manager died on us. prepare its eulogy.
     mBootFinished = false;
 
-    // Sever the link to inputflinger since it's gone as well.
-    static_cast<void>(mScheduler->schedule(
-            [this] { mInputFlinger.clear(); }));
+    static_cast<void>(mScheduler->schedule([this]() FTL_FAKE_GUARD(kMainThreadContext) {
+        // Sever the link to inputflinger since it's gone as well.
+        mInputFlinger.clear();
 
-    // restore initial conditions (default device unblank, etc)
-    initializeDisplays();
+        initializeDisplays();
+    }));
 
-    // restart the boot-animation
     startBootAnim();
 }
 
@@ -873,7 +872,9 @@
     mDrawingState = mCurrentState;
 
     onActiveDisplayChangedLocked(nullptr, *display);
-    initializeDisplays();
+
+    static_cast<void>(mScheduler->schedule(
+            [this]() FTL_FAKE_GUARD(kMainThreadContext) { initializeDisplays(); }));
 
     mPowerAdvisor->init();
 
@@ -5245,7 +5246,7 @@
     setTransactionFlags(eTransactionFlushNeeded);
 }
 
-void SurfaceFlinger::onInitializeDisplays() {
+void SurfaceFlinger::initializeDisplays() {
     const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
     if (!display) return;
 
@@ -5292,12 +5293,6 @@
     }
 }
 
-void SurfaceFlinger::initializeDisplays() {
-    // Async since we may be called from the main thread.
-    static_cast<void>(mScheduler->schedule(
-            [this]() FTL_FAKE_GUARD(kMainThreadContext) { onInitializeDisplays(); }));
-}
-
 void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal::PowerMode mode) {
     if (display->isVirtual()) {
         ALOGE("%s: Invalid operation on virtual display", __func__);
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 3593deb..ae783bf 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -856,8 +856,7 @@
      */
 
     // Called during boot, and restart after system_server death.
-    void initializeDisplays();
-    void onInitializeDisplays() REQUIRES(kMainThreadContext);
+    void initializeDisplays() REQUIRES(kMainThreadContext);
 
     sp<const DisplayDevice> getDisplayDeviceLocked(const wp<IBinder>& displayToken) const
             REQUIRES(mStateLock) {
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
index f27f53b..72cecc9 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
@@ -402,9 +402,8 @@
     SurfaceFlinger *flinger() { return mFlinger.get(); }
     scheduler::TestableScheduler *scheduler() { return mScheduler; }
 
-    // Allow reading display state without locking, as if called on the SF main thread.
-    auto onInitializeDisplays() NO_THREAD_SAFETY_ANALYSIS {
-        return mFlinger->onInitializeDisplays();
+    void initializeDisplays() {
+        FTL_FAKE_GUARD(kMainThreadContext, mFlinger->initializeDisplays());
     }
 
     void setGlobalShadowSettings(FuzzedDataProvider *fdp) {
@@ -542,7 +541,7 @@
                 mFlinger->createDisplay(String8(fdp->ConsumeRandomLengthString().c_str()),
                                         fdp->ConsumeBool());
 
-        onInitializeDisplays();
+        initializeDisplays();
         mFlinger->getPhysicalDisplayToken(physicalDisplayId);
 
         mFlinger->mStartPropertySetThread =
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 012a4ad..df3ffd2 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -107,9 +107,9 @@
         "SurfaceFlinger_GetDisplayNativePrimariesTest.cpp",
         "SurfaceFlinger_HdrOutputControlTest.cpp",
         "SurfaceFlinger_HotplugTest.cpp",
+        "SurfaceFlinger_InitializeDisplaysTest.cpp",
         "SurfaceFlinger_MultiDisplayPacesetterTest.cpp",
         "SurfaceFlinger_NotifyPowerBoostTest.cpp",
-        "SurfaceFlinger_OnInitializeDisplaysTest.cpp",
         "SurfaceFlinger_PowerHintTest.cpp",
         "SurfaceFlinger_SetDisplayStateTest.cpp",
         "SurfaceFlinger_SetPowerModeInternalTest.cpp",
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
similarity index 93%
rename from services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
rename to services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
index 98644aa..fc5f2b0 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
@@ -22,9 +22,9 @@
 namespace android {
 namespace {
 
-class OnInitializeDisplaysTest : public DisplayTransactionTest {};
+class InitializeDisplaysTest : public DisplayTransactionTest {};
 
-TEST_F(OnInitializeDisplaysTest, onInitializeDisplaysSetsUpPrimaryDisplay) {
+TEST_F(InitializeDisplaysTest, commitsPrimaryDisplay) {
     using Case = SimplePrimaryDisplayCase;
 
     // --------------------------------------------------------------------
@@ -52,7 +52,7 @@
     // --------------------------------------------------------------------
     // Invocation
 
-    mFlinger.onInitializeDisplays();
+    FTL_FAKE_GUARD(kMainThreadContext, mFlinger.initializeDisplays());
 
     // --------------------------------------------------------------------
     // Postconditions
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 63b624d..fc9e653 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -419,10 +419,7 @@
         return mFlinger->setDisplayStateLocked(s);
     }
 
-    // Allow reading display state without locking, as if called on the SF main thread.
-    auto onInitializeDisplays() NO_THREAD_SAFETY_ANALYSIS {
-        return mFlinger->onInitializeDisplays();
-    }
+    void initializeDisplays() FTL_FAKE_GUARD(kMainThreadContext) { mFlinger->initializeDisplays(); }
 
     auto notifyPowerBoost(int32_t boostId) { return mFlinger->notifyPowerBoost(boostId); }