Bug 1530471 - remove prefs for related to SkiaGL canvas r=jrmuizel

Depends on D21055

Differential Revision: https://phabricator.services.mozilla.com/D21056

--HG--
extra : moz-landing-system : lando

gfx/tests/gtest/TestGfxPrefs.cpp

@@ -45,9 +45,6 @@ TEST(GfxPrefs, OnceValues) {
   // Once boolean, default false
   ASSERT_FALSE(gfxPrefs::LayersDump());
 
-  // Once int32_t, default 95
-  ASSERT_TRUE(gfxPrefs::CanvasSkiaGLCacheSize() == 96);
-
   // Once uint32_t, default 5
   ASSERT_TRUE(gfxPrefs::APZMaxVelocityQueueSize() == 5);
 

gfx/thebes/gfxPlatform.cpp

@@ -875,7 +875,7 @@ void gfxPlatform::Init() {
         gfxPrefs::WebGLForceMSAA());
     // Prefs that don't fit into any of the other sections
     forcedPrefs.AppendPrintf("-T%d%d%d) ", gfxPrefs::AndroidRGB16Force(),
-                             gfxPrefs::CanvasAzureAccelerated(),
+                             0, // SkiaGL canvas no longer supported
                              gfxPrefs::ForceShmemTiles());
     ScopedGfxFeatureReporter::AppNote(forcedPrefs);
   }

gfx/thebes/gfxPrefs.h

@@ -468,16 +468,8 @@ class gfxPrefs final {
 #endif // defined(MOZ_WIDGET_ANDROID)
   DECL_GFX_PREF(Live, "gfx.compositor.clearstate",             CompositorClearState, bool, false);
   DECL_GFX_PREF(Live, "gfx.compositor.glcontext.opaque",       CompositorGLContextOpaque, bool, false);
-  DECL_GFX_PREF(Live, "gfx.canvas.auto_accelerate.min_calls",  CanvasAutoAccelerateMinCalls, int32_t, 4);
-  DECL_GFX_PREF(Live, "gfx.canvas.auto_accelerate.min_frames", CanvasAutoAccelerateMinFrames, int32_t, 30);
-  DECL_GFX_PREF(Live, "gfx.canvas.auto_accelerate.min_seconds", CanvasAutoAccelerateMinSeconds, float, 5.0f);
-  DECL_GFX_PREF(Live, "gfx.canvas.azure.accelerated",          CanvasAzureAccelerated, bool, false);
-  DECL_GFX_PREF(Once, "gfx.canvas.azure.accelerated.limit",    CanvasAzureAcceleratedLimit, int32_t, 0);
   // 0x7fff is the maximum supported xlib surface size and is more than enough for canvases.
   DECL_GFX_PREF(Live, "gfx.canvas.max-size",                   MaxCanvasSize, int32_t, 0x7fff);
-  DECL_GFX_PREF(Once, "gfx.canvas.skiagl.cache-items",         CanvasSkiaGLCacheItems, int32_t, 256);
-  DECL_GFX_PREF(Once, "gfx.canvas.skiagl.cache-size",          CanvasSkiaGLCacheSize, int32_t, 96);
-  DECL_GFX_PREF(Once, "gfx.canvas.skiagl.dynamic-cache",       CanvasSkiaGLDynamicCache, bool, false);
 
   DECL_GFX_PREF(Live, "gfx.color_management.enablev4",         CMSEnableV4, bool, false);
   DECL_GFX_PREF(Live, "gfx.color_management.mode",             CMSMode, int32_t,-1);

mobile/android/app/mobile.js

@@ -718,10 +718,7 @@ pref("dom.phonenumber.substringmatching.BR", 8);
 pref("dom.phonenumber.substringmatching.CO", 10);
 pref("dom.phonenumber.substringmatching.VE", 7);
 
-// Support, but deprecate, hardware-accelerated Skia canvas
 pref("gfx.canvas.azure.backends", "skia");
-pref("gfx.canvas.azure.accelerated", false);
-pref("gfx.canvas.azure.accelerated.limit", 64);
 
 // See ua-update.json.in for the packaged UA override list
 pref("general.useragent.updates.enabled", true);

modules/libpref/init/all.js

@@ -896,8 +896,6 @@ pref("gfx.content.azure.backends", "skia");
 #endif
 #endif
 
-pref("gfx.canvas.skiagl.dynamic-cache", true);
-
 pref("gfx.text.disable-aa", false);
 
 pref("gfx.work-around-driver-bugs", true);