Bug 1207355 (Part 8) - Remove imgIContainer::RequestDecode() and imgIRequest::RequestDecode(). r=tn

image/DynamicImage.cpp

@@ -246,12 +246,6 @@ DynamicImage::Draw(gfxContext* aContext,
   return DrawResult::SUCCESS;
 }
 
-NS_IMETHODIMP
-DynamicImage::RequestDecode()
-{
-  return NS_OK;
-}
-
 NS_IMETHODIMP
 DynamicImage::StartDecoding()
 {

image/ImageWrapper.cpp

@@ -214,12 +214,6 @@ ImageWrapper::Draw(gfxContext* aContext,
                            aFilter, aSVGContext, aFlags);
 }
 
-NS_IMETHODIMP
-ImageWrapper::RequestDecode()
-{
-  return mInnerImage->RequestDecode();
-}
-
 NS_IMETHODIMP
 ImageWrapper::StartDecoding()
 {

image/RasterImage.cpp

@@ -1166,15 +1166,6 @@ RasterImage::CanDiscard() {
          !mAnim;                 // Can never discard animated images
 }
 
-//******************************************************************************
-
-NS_IMETHODIMP
-RasterImage::RequestDecode()
-{
-  return RequestDecodeForSize(mSize, DECODE_FLAGS_DEFAULT);
-}
-
-
 NS_IMETHODIMP
 RasterImage::StartDecoding()
 {
@@ -1799,7 +1790,7 @@ RasterImage::FinalizeDecoder(Decoder* aDecoder)
   // If we were a metadata decode and a full decode was requested, do it.
   if (done && wasMetadata && mWantFullDecode) {
     mWantFullDecode = false;
-    RequestDecode();
+    RequestDecodeForSize(mSize, DECODE_FLAGS_DEFAULT);
   }
 }
 

image/VectorImage.cpp

@@ -964,15 +964,6 @@ VectorImage::RecoverFromLossOfSurfaces()
   SurfaceCache::RemoveImage(ImageKey(this));
 }
 
-//******************************************************************************
-
-NS_IMETHODIMP
-VectorImage::RequestDecode()
-{
-  // Nothing to do for SVG images
-  return NS_OK;
-}
-
 NS_IMETHODIMP
 VectorImage::StartDecoding()
 {

image/imgIContainer.idl

@@ -75,7 +75,7 @@ native nsIntSizeByVal(nsIntSize);
  *
  * Internally, imgIContainer also manages animation of images.
  */
-[scriptable, builtinclass, uuid(7c795421-a79c-43ac-9e20-6d4e8a9dfb76)]
+[scriptable, builtinclass, uuid(a8dbee24-ff86-4755-b40e-51175caf31af)]
 interface imgIContainer : nsISupports
 {
   /**
@@ -383,22 +383,16 @@ interface imgIContainer : nsISupports
 
   /*
    * Ensures that an image is decoding. Calling this function guarantees that
-   * the image will at some point fire off decode notifications. Calling draw()
-   * or getFrame() triggers the same mechanism internally. Thus, if you want to
-   * be sure that the image will be decoded but don't want to access it until
-   * then, you must call requestDecode().
-   */
-  void requestDecode();
-
-  /*
-   * This is equivalent to requestDecode() but it also synchronously decodes
-   * images that can be decoded "quickly" according to some heuristic.
+   * the image will at some point fire off decode notifications. Images that
+   * can be decoded "quickly" according to some heuristic will be decoded
+   * synchronously.
    */
   [noscript] void startDecoding();
 
   /*
-   * This method is equivalent to requestDecode(), but enables the caller to
-   * provide more detailed information about the decode request.
+   * This method triggers decoding for an image, but unlike startDecoding() it
+   * enables the caller to provide more detailed information about the decode
+   * request.
    *
    * @param aSize The size to which the image should be scaled while decoding,
    *              if possible. If the image cannot be scaled to this size while

image/imgIRequest.idl

@@ -19,7 +19,7 @@ interface nsIPrincipal;
  * @version 0.1
  * @see imagelib2
  */
-[scriptable, builtinclass, uuid(4cb01f0a-ef94-4345-a8d7-1a93f15ff548)]
+[scriptable, builtinclass, uuid(db0a945c-3883-424a-98d0-2ee0523b0255)]
 interface imgIRequest : nsIRequest
 {
   /**
@@ -145,15 +145,14 @@ interface imgIRequest : nsIRequest
   void cancelAndForgetObserver(in nsresult aStatus);
 
   /**
-   * Requests a decode for the image.
+   * Requests a synchronous decode for the image.
    *
-   * imgIContainer has a requestDecode() method, but callers may want to request
+   * imgIContainer has a startDecoding() method, but callers may want to request
    * a decode before the container has necessarily been instantiated. Calling
-   * requestDecode() on the imgIRequest simply forwards along the request if the
-   * container already exists, or calls it once it gets OnStartContainer if the
-   * container does not yet exist.
+   * startDecoding() on the imgIRequest simply forwards along the request if the
+   * container already exists, or calls it once the container becomes available
+   * if it does not yet exist.
    */
-  void requestDecode();
   void startDecoding();
 
   /**

image/imgLoader.cpp

@@ -1590,7 +1590,7 @@ imgLoader::ValidateRequestWithNewChannel(imgRequest* request,
       // We will send notifications from imgCacheValidator::OnStartRequest().
       // In the mean time, we must defer notifications because we are added to
       // the imgRequest's proxy list, and we can get extra notifications
-      // resulting from methods such as RequestDecode(). See bug 579122.
+      // resulting from methods such as StartDecoding(). See bug 579122.
       proxy->SetNotificationsDeferred(true);
 
       // Attach the proxy without notifying
@@ -1666,7 +1666,7 @@ imgLoader::ValidateRequestWithNewChannel(imgRequest* request,
     // We will send notifications from imgCacheValidator::OnStartRequest().
     // In the mean time, we must defer notifications because we are added to
     // the imgRequest's proxy list, and we can get extra notifications
-    // resulting from methods such as RequestDecode(). See bug 579122.
+    // resulting from methods such as StartDecoding(). See bug 579122.
     req->SetNotificationsDeferred(true);
 
     // Add the proxy without notifying

image/imgRequest.cpp

@@ -413,7 +413,7 @@ imgRequest::ContinueEvict()
 }
 
 void
-imgRequest::RequestDecode()
+imgRequest::StartDecoding()
 {
   MutexAutoLock lock(mMutex);
   mDecodeRequested = true;

image/imgRequest.h

@@ -95,7 +95,7 @@ public:
   void ContinueEvict();
 
   // Request that we start decoding the image as soon as data becomes available.
-  void RequestDecode();
+  void StartDecoding();
 
   inline uint64_t InnerWindowID() const {
     return mInnerWindowId;
@@ -220,7 +220,7 @@ private:
   // Update the cache entry size based on the image container.
   void UpdateCacheEntrySize();
 
-  /// Returns true if RequestDecode() was called.
+  /// Returns true if StartDecoding() was called.
   bool IsDecodeRequested() const;
 
   // Weak reference to parent loader; this request cannot outlive its owner.

image/imgRequestProxy.cpp

@@ -371,19 +371,12 @@ imgRequestProxy::StartDecoding()
   }
 
   if (GetOwner()) {
-    GetOwner()->RequestDecode();
+    GetOwner()->StartDecoding();
   }
 
   return NS_OK;
 }
 
-NS_IMETHODIMP
-imgRequestProxy::RequestDecode()
-{
-  return NS_OK;
-}
-
-
 NS_IMETHODIMP
 imgRequestProxy::LockImage()
 {

image/test/unit/image_load_helpers.js

@@ -48,12 +48,6 @@ function ImageListener(start_callback, stop_callback)
   {
     do_check_false(this.synchronous);
 
-    try {
-      aRequest.requestDecode();
-    } catch (e) {
-      do_print("requestDecode threw " + e);
-    }
-
     this.state |= LOAD_COMPLETE;
 
     if (this.stop_callback)

layout/style/nsStyleStruct.h

@@ -962,9 +962,6 @@ struct nsStyleBorder {
     return mBorderImageSource.IsLoaded();
   }
 
-  // Defined in nsStyleStructInlines.h
-  inline nsresult RequestDecode();
-
   void GetBorderColor(mozilla::css::Side aSide, nscolor& aColor,
                       bool& aForeground) const
   {