Bug 1282670, part 1: Add missing #include & "using" declarations in imagelib. r=seth

I found these issues locally by moving all of imagelib's .cpp files to SOURCES instead of UNIFIED_SOURCES.  (That change isn't part of this patch, though.)

MozReview-Commit-ID: 97Xpfu8eFE6

image/Downscaler.cpp

@@ -10,6 +10,7 @@
 #include <ctime>
 #include "gfxPrefs.h"
 #include "image_operations.h"
+#include "mozilla/gfx/2D.h"
 #include "mozilla/SSE.h"
 #include "mozilla/mips.h"
 #include "convolver.h"
@@ -19,6 +20,9 @@ using std::max;
 using std::swap;
 
 namespace mozilla {
+
+using gfx::IntRect;
+
 namespace image {
 
 Downscaler::Downscaler(const nsIntSize& aTargetSize)

image/Downscaler.h

@@ -14,6 +14,7 @@
 
 #include "mozilla/Maybe.h"
 #include "mozilla/UniquePtr.h"
+#include "gfxPoint.h"
 #include "nsRect.h"
 
 namespace skia {

image/FrozenImage.cpp

@@ -8,6 +8,8 @@
 namespace mozilla {
 
 using namespace gfx;
+using layers::ImageContainer;
+using layers::LayerManager;
 
 namespace image {
 

image/ImageCacheKey.h

@@ -11,6 +11,7 @@
 #define mozilla_image_src_ImageCacheKey_h
 
 #include "mozilla/Maybe.h"
+#include "mozilla/RefPtr.h"
 
 class nsIDocument;
 class nsIURI;

image/ImageWrapper.cpp

@@ -13,6 +13,7 @@
 namespace mozilla {
 
 using gfx::DataSourceSurface;
+using gfx::IntSize;
 using gfx::SamplingFilter;
 using gfx::SourceSurface;
 using layers::LayerManager;

image/MultipartImage.cpp

@@ -8,6 +8,10 @@
 #include "imgINotificationObserver.h"
 
 namespace mozilla {
+
+using gfx::IntSize;
+using gfx::SourceSurface;
+
 namespace image {
 
 ///////////////////////////////////////////////////////////////////////////////

image/SurfacePipe.h

@@ -24,6 +24,8 @@
 
 #include <stdint.h>
 
+#include "nsDebug.h"
+
 #include "mozilla/Likely.h"
 #include "mozilla/Maybe.h"
 #include "mozilla/Move.h"

image/decoders/nsICODecoder.h

@@ -13,6 +13,7 @@
 #include "nsBMPDecoder.h"
 #include "nsPNGDecoder.h"
 #include "ICOFileHeaders.h"
+#include "mozilla/gfx/2D.h"
 
 namespace mozilla {
 namespace image {
@@ -114,8 +115,8 @@ private:
   UniquePtr<uint8_t[]> mMaskBuffer;    // A temporary buffer for the alpha mask.
   char mBIHraw[bmp::InfoHeaderLength::WIN_ICO]; // The bitmap information header.
   IconDirEntry mDirEntry;              // The dir entry for the selected resource.
-  IntSize mBiggestResourceSize;        // Used to select the intrinsic size.
-  IntSize mBiggestResourceHotSpot;     // Used to select the intrinsic size.
+  gfx::IntSize mBiggestResourceSize;   // Used to select the intrinsic size.
+  gfx::IntSize mBiggestResourceHotSpot; // Used to select the intrinsic size.
   uint16_t mBiggestResourceColorDepth; // Used to select the intrinsic size.
   int32_t mBestResourceDelta;          // Used to select the best resource.
   uint16_t mBestResourceColorDepth;    // Used to select the best resource.

image/imgFrame.cpp

@@ -12,6 +12,7 @@
 
 #include "gfx2DGlue.h"
 #include "gfxPlatform.h"
+#include "gfxPrefs.h"
 #include "gfxUtils.h"
 #include "gfxAlphaRecovery.h"