Switch from HIDL DisplayCapability to AIDL

In preparation for adding a new DisplayCapability which is only in AIDL.
This change is almost completely mechanical, and should have no impact
on behavior.

Similar to I1f923fcc8d8e6dff388493a76e31d435638b5255 for Composition.

Bug: 193170859
Test: existing tests
Change-Id: I448d5d0ec71f99fb3cbfbe505ded40ab37f6083b
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index 3dcea61..215d1a3 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -40,6 +40,7 @@
 #include "ComposerHal.h"
 
 using aidl::android::hardware::graphics::composer3::Composition;
+using aidl::android::hardware::graphics::composer3::DisplayCapability;
 
 namespace android {
 
@@ -285,7 +286,7 @@
     return Error::NONE;
 }
 
-bool Display::hasCapability(hal::DisplayCapability capability) const {
+bool Display::hasCapability(DisplayCapability capability) const {
     std::scoped_lock lock(mDisplayCapabilitiesMutex);
     if (mDisplayCapabilities) {
         return mDisplayCapabilities->count(capability) > 0;
@@ -458,14 +459,14 @@
 
     if (mode == PowerMode::ON) {
         std::call_once(mDisplayCapabilityQueryFlag, [this]() {
-            std::vector<Hwc2::DisplayCapability> tmpCapabilities;
+            std::vector<DisplayCapability> tmpCapabilities;
             auto error =
                     static_cast<Error>(mComposer.getDisplayCapabilities(mId, &tmpCapabilities));
             if (error == Error::NONE) {
                 std::scoped_lock lock(mDisplayCapabilitiesMutex);
                 mDisplayCapabilities.emplace();
                 for (auto capability : tmpCapabilities) {
-                    mDisplayCapabilities->emplace(static_cast<DisplayCapability>(capability));
+                    mDisplayCapabilities->emplace(capability);
                 }
             } else if (error == Error::UNSUPPORTED) {
                 std::scoped_lock lock(mDisplayCapabilitiesMutex);