Set maximum output size for scaled-image-cache images

src/core/SkScaledImageCache.cpp

Index: src/core/SkScaledImageCache.cpp
diff --git a/src/core/SkScaledImageCache.cpp b/src/core/SkScaledImageCache.cpp
index 6d63edb468fa47c20fa91ef5f8b77e192ab0f0df..0bcef8c0d8d17967bd90370817d03e2d3b22a324 100644
--- a/src/core/SkScaledImageCache.cpp
+++ b/src/core/SkScaledImageCache.cpp
@@ -142,6 +142,7 @@ void SkScaledImageCache::init() {
 #endif
     fBytesUsed = 0;
     fCount = 0;
+    fSingleAllocationByteLimit = 0;
     fAllocator = NULL;
 
     // One of these should be explicit set by the caller after we return.
@@ -638,6 +639,16 @@ void SkScaledImageCache::dump() const {
              fDiscardableFactory ? "discardable" : "malloc");
 }
 
+size_t SkScaledImageCache::setSingleAllocationByteLimit(size_t newLimit) {
+    size_t oldLimit = fSingleAllocationByteLimit;
+    fSingleAllocationByteLimit = newLimit;
+    return oldLimit;
+}
+
+size_t SkScaledImageCache::getSingleAllocationByteLimit() const {
+    return fSingleAllocationByteLimit;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "SkThread.h"
@@ -749,6 +760,16 @@ void SkScaledImageCache::Dump() {
     get_cache()->dump();
 }
 
+size_t SkScaledImageCache::SetSingleAllocationByteLimit(size_t size) {
+    SkAutoMutexAcquire am(gMutex);
+    return get_cache()->setSingleAllocationByteLimit(size);
+}
+
+size_t SkScaledImageCache::GetSingleAllocationByteLimit() {
+    SkAutoMutexAcquire am(gMutex);
+    return get_cache()->getSingleAllocationByteLimit();
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "SkGraphics.h"
@@ -764,3 +785,12 @@ size_t SkGraphics::GetImageCacheByteLimit() {
 size_t SkGraphics::SetImageCacheByteLimit(size_t newLimit) {
     return SkScaledImageCache::SetByteLimit(newLimit);
 }
+
+size_t SkGraphics::GetImageCacheSingleAllocationByteLimit() {
+    return SkScaledImageCache::GetSingleAllocationByteLimit();
+}
+
+size_t SkGraphics::SetImageCacheSingleAllocationByteLimit(size_t newLimit) {
+    return SkScaledImageCache::SetSingleAllocationByteLimit(newLimit);
+}
+