Create SharedImageBackingFactoryAHB only when AHB is supported.

Although the SharedImageBackingFactoryAHB do not perform any AHB
related operations in its constructor, we still want its object to be
created only when AHB is supported to make sure we are not unnecessarily
creating the object and not using it.
As an example for Android N, since AHB is not supported, this object
will never be used but we were still creating this object. This resulted
in crash on android N though actual reason of crash is still unknown.

Bug: 1128900
Change-Id: If1e9949c9d415bce0ed856f94c437802c4896ead
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2459347
Commit-Queue: vikas soni <vikassoni@chromium.org>
Reviewed-by: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814958}

gpu/command_buffer/service/shared_image_backing_factory_ahardwarebuffer.cc

@@ -442,6 +442,7 @@ void SharedImageBackingAHB::EndOverlayAccess() {
 SharedImageBackingFactoryAHB::SharedImageBackingFactoryAHB(
     const GpuDriverBugWorkarounds& workarounds,
     const GpuFeatureInfo& gpu_feature_info) {
+  DCHECK(base::AndroidHardwareBufferCompat::IsSupportAvailable());
   scoped_refptr<gles2::FeatureInfo> feature_info =
       new gles2::FeatureInfo(workarounds, gpu_feature_info);
   feature_info->Initialize(ContextType::CONTEXT_TYPE_OPENGLES2, false,

gpu/command_buffer/service/shared_image_factory.cc

@@ -56,6 +56,7 @@
 #endif  // defined(OS_FUCHSIA)
 
 #if defined(OS_ANDROID)
+#include "base/android/android_hardware_buffer_compat.h"
 #include "base/android/scoped_hardware_buffer_fence_sync.h"
 #include "gpu/command_buffer/service/shared_image_backing_scoped_hardware_buffer_fence_sync.h"
 #endif
@@ -136,7 +137,7 @@ SharedImageFactory::SharedImageFactory(
       interop_backing_factory_ = std::make_unique<SharedImageBackingFactoryAHB>(
           workarounds, gpu_feature_info);
     }
-  } else {
+  } else if (base::AndroidHardwareBufferCompat::IsSupportAvailable()) {
     interop_backing_factory_ = std::make_unique<SharedImageBackingFactoryAHB>(
         workarounds, gpu_feature_info);
   }