Merge changes I55c6d71a,Ifb3277d4,Ia1b847a2,I7ba9cf3f,Ida2b2a8a,I1280ec90,I72f818d5,I2e3b588b,I9a4e6289,Ia724c78b,Icd8612c8,Ie31b15d7,Ie125edae,I77941a88,I89dae78b,I3516e5ca,I1a4c17b5,I2c4ecc1a,I9c8e6537,Ifac13115,Ie1f80e09,Ia541ed77,I60ce9d78

* changes:
  Merge WebKit at r82507: Update ThirdPartyProject.prop
  Merge WebKit at r82507: Cherry-pick change r88166 to add INSPECTOR guards to ScriptProfiler
  Merge WebKit at r82507: Work around a V8 bug
  Merge WebKit at r82507: JNIType renamed to JavaType
  Merge WebKit at r82507: IconDatabaseClient interface expanded
  Merge WebKit at r82507: Don't use new loss-free code path in HTMLCanvasElement::toDataURL()
  Merge WebKit at r82507: IcondDatabaseBase::iconForPageURL() renamed
  Merge WebKit at r82507: IconDatabaseBase::Open() signature changed
  Merge WebKit at r82507: Node::isContentEditable() renamed
  Merge WebKit at r82507: Use icon database through IconDatabaseBase
  Merge WebKit at r82507: toInputElement() is now a member of Node
  Merge WebKit at r82507: FrameLoaderClient::objectContentType() signature changed
  Merge WebKit at r82507: StringImpl::computeHash() removed
  Merge WebKit at r82507: Stub out FontPlatformData::setOrientation()
  Merge WebKit at r82507: Path::strokeBoundingRect() is now const
  Merge WebKit at r82507: Add missing UnusedParam.h include in ApplicationCacheGroup.cpp
  Merge WebKit at r82507: Continue to use Android's version of FontPlatformData.h
  Merge WebKit at r82507: Update signature of FontCustomPlatformData::fontPlatformData()
  Merge WebKit at r82507: Fix conflicts due to JNI refactoring
  Merge WebKit at r82507: Fix conflicts due to new StorageTracker
  Merge WebKit at r82507: Fix conflicts
  Merge WebKit at r82507: Fix makefiles
  Merge WebKit at r82507: Initial merge by git

1 files changed, 51 insertions, 11 deletions

diff --git a/Source/WebKit2/Shared/ShareableBitmap.h b/Source/WebKit2/Shared/ShareableBitmap.h
index f9a3af0..fe7fa0a 100644
--- a/Source/WebKit2/Shared/ShareableBitmap.h
+++ b/Source/WebKit2/Shared/ShareableBitmap.h
@@ -33,6 +33,10 @@
 #include <wtf/RefCounted.h>
 #include <wtf/RefPtr.h>
 
+#if PLATFORM(CG)
+#include <wtf/RetainPtr.h>
+#endif
+
 namespace WebCore {
     class GraphicsContext;
 }
@@ -41,20 +45,43 @@ namespace WebKit {
     
 class ShareableBitmap : public RefCounted<ShareableBitmap> {
 public:
+    enum Flag {
+        SupportsAlpha = 1 << 0,
+    };
+    typedef unsigned Flags;
+
+    class Handle {
+        WTF_MAKE_NONCOPYABLE(Handle);
+    public:
+        Handle();
+
+        bool isNull() const { return m_handle.isNull(); }
+
+        void encode(CoreIPC::ArgumentEncoder*) const;
+        static bool decode(CoreIPC::ArgumentDecoder*, Handle&);
+
+    private:
+        friend class ShareableBitmap;
+
+        mutable SharedMemory::Handle m_handle;
+        WebCore::IntSize m_size;
+        Flags m_flags;
+    };
+
     // Create a shareable bitmap that uses malloced memory.
-    static PassRefPtr<ShareableBitmap> create(const WebCore::IntSize&);
+    static PassRefPtr<ShareableBitmap> create(const WebCore::IntSize&, Flags);
 
     // Create a shareable bitmap whose backing memory can be shared with another process.
-    static PassRefPtr<ShareableBitmap> createShareable(const WebCore::IntSize&);
+    static PassRefPtr<ShareableBitmap> createShareable(const WebCore::IntSize&, Flags);
 
     // Create a shareable bitmap from an already existing shared memory block.
-    static PassRefPtr<ShareableBitmap> create(const WebCore::IntSize&, PassRefPtr<SharedMemory>);
+    static PassRefPtr<ShareableBitmap> create(const WebCore::IntSize&, Flags, PassRefPtr<SharedMemory>);
 
-    // Create a shareable bitmap from a shared memory handle.
-    static PassRefPtr<ShareableBitmap> create(const WebCore::IntSize&, const SharedMemory::Handle&);
+    // Create a shareable bitmap from a handle.
+    static PassRefPtr<ShareableBitmap> create(const Handle&);
 
-    // Create a shared memory handle.
-    bool createHandle(SharedMemory::Handle&);
+    // Create a handle.
+    bool createHandle(Handle&);
 
     ~ShareableBitmap();
 
@@ -71,18 +98,31 @@ public:
 
     bool isBackedBySharedMemory() const { return m_sharedMemory; }
 
+#if PLATFORM(CG)
+    // This creates a copied CGImageRef (most likely a copy-on-write) of the shareable bitmap.
+    RetainPtr<CGImageRef> makeCGImageCopy();
+
+    // This creates a CGImageRef that directly references the shared bitmap data.
+    // This is only safe to use when we know that the contents of the shareable bitmap won't change.
+    RetainPtr<CGImageRef> makeCGImage();
+#endif
+
 private:
-    ShareableBitmap(const WebCore::IntSize&, void*);
-    ShareableBitmap(const WebCore::IntSize&, PassRefPtr<SharedMemory>);
+    ShareableBitmap(const WebCore::IntSize&, Flags, void*);
+    ShareableBitmap(const WebCore::IntSize&, Flags, PassRefPtr<SharedMemory>);
 
     static size_t numBytesForSize(const WebCore::IntSize& size) { return size.width() * size.height() * 4; }
 
-    static void releaseData(void* typelessBitmap, void* typelessData);
-    
+#if PLATFORM(CG)
+    static void releaseBitmapContextData(void* typelessBitmap, void* typelessData);
+    static void releaseDataProviderData(void* typelessBitmap, const void* typelessData, size_t);
+#endif
+
     void* data() const;
     size_t sizeInBytes() const { return numBytesForSize(m_size); }
 
     WebCore::IntSize m_size;
+    Flags m_flags;
 
     // If the shareable bitmap is backed by shared memory, this points to the shared memory object.
     RefPtr<SharedMemory> m_sharedMemory;