Add a caps bit to enable/disable the new manual mip-mapper

src/gpu/gl/GrGLCaps.cpp

Index: src/gpu/gl/GrGLCaps.cpp
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 6aa94dee0d13bf71c395aded2ff0399827a7a7af..88ed455bb11cb6c2678af3acdb35751ab9fdefe0 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -50,6 +50,7 @@ GrGLCaps::GrGLCaps(const GrContextOptions& contextOptions,
     fPartialFBOReadIsSlow = false;
     fMipMapLevelAndLodControlSupport = false;
     fRGBAToBGRAReadbackConversionsAreSlow = false;
+    fDoManualMipmapping = false;
 
     fBlitFramebufferSupport = kNone_BlitFramebufferSupport;
 
@@ -543,6 +544,14 @@ void GrGLCaps::init(const GrContextOptions& contextOptions,
         fSampleShadingSupport = true;
     }
 
+    // Manual mip-mapping requires mip-level sampling control.
+    // Additionally, Adreno330 will produce empty mip-maps for the very smallest mips with
+    // our manual (draw-call) implementation.
+    if (fMipMapLevelAndLodControlSupport &&
+        kAdreno3xx_GrGLRenderer != ctxInfo.renderer()) {
+        fDoManualMipmapping = true;
+    }
+
     // Requires fTextureRedSupport, fTextureSwizzleSupport, msaa support, ES compatibility have
     // already been detected.
     this->initConfigTable(ctxInfo, gli, glslCaps);