rename filterTextFlags to disableLCD

src/core/SkDevice.cpp

Index: src/core/SkDevice.cpp
diff --git a/src/core/SkDevice.cpp b/src/core/SkDevice.cpp
index 3d5000f5694ae97752cdf01ed70da33aa340aca5..c9afe67b02617dcc19d189127a7b608b069e31a7 100644
--- a/src/core/SkDevice.cpp
+++ b/src/core/SkDevice.cpp
@@ -28,18 +28,6 @@ SkBaseDevice::~SkBaseDevice() {
     SkDELETE(fMetaData);
 }
 
-SkBaseDevice* SkBaseDevice::createCompatibleDevice(const SkImageInfo& info) {
-    return this->onCreateDevice(info, kGeneral_Usage);
-}
-
-SkBaseDevice* SkBaseDevice::createCompatibleDeviceForSaveLayer(const SkImageInfo& info) {
-    return this->onCreateDevice(info, kSaveLayer_Usage);
-}
-
-SkBaseDevice* SkBaseDevice::createCompatibleDeviceForImageFilter(const SkImageInfo& info) {
-    return this->onCreateDevice(info, kImageFilter_Usage);
-}
-
 SkMetaData& SkBaseDevice::getMetaData() {
     // metadata users are rare, so we lazily allocate it. If that changes we
     // can decide to just make it a field in the device (rather than a ptr)
@@ -65,6 +53,22 @@ void SkBaseDevice::setPixelGeometry(SkPixelGeometry geo) {
     fLeakyProperties->setPixelGeometry(geo);
 }
 
+void SkBaseDevice::setup(SkPixelGeometry geo, Usage usage) {
+    switch (usage) {
+        case kGeneral_Usage:
+            break;
+        case kSaveLayer_Usage:
+            if (this->imageInfo().alphaType() != kOpaque_SkAlphaType) {
+                geo = kUnknown_SkPixelGeometry;
+            }
+            break;
+        case kImageFilter_Usage:
+            geo = kUnknown_SkPixelGeometry;
+            break;
+    }
+    fLeakyProperties->setPixelGeometry(geo);
+}
+
 SkSurface* SkBaseDevice::newSurface(const SkImageInfo&, const SkSurfaceProps&) { return NULL; }
 
 const void* SkBaseDevice::peekPixels(SkImageInfo*, size_t*) { return NULL; }
@@ -187,3 +191,18 @@ bool SkBaseDevice::EXPERIMENTAL_drawPicture(SkCanvas*, const SkPicture*, const S
     // The base class doesn't perform any accelerated picture rendering
     return false;
 }
+
+//////////////////////////////////////////////////////////////////////////////////////////
+
+bool SkBaseDevice::disableLCD(const SkPaint& paint) const {
+    if (!paint.isLCDRenderText() || !paint.isAntiAlias()) {
+        return false;
+    }
+
+    if (kUnknown_SkPixelGeometry == fLeakyProperties->pixelGeometry()) {
+        return true;
+    }
+
+    return this->onDisableLCD(paint);
+}
+