Bug 844905 - Change MediaResource::GetContentType return type to nsCString. r=cpearce

content/media/BufferMediaResource.h

@@ -136,7 +136,7 @@ public:
 
   bool IsTransportSeekable() MOZ_OVERRIDE { return true; }
 
-  virtual const nsACString& GetContentType() const MOZ_OVERRIDE
+  virtual const nsCString& GetContentType() const MOZ_OVERRIDE
   {
     return mContentType;
   }

content/media/MediaResource.h

@@ -371,7 +371,7 @@ public:
   // Returns the content type of the resource. This is copied from the
   // nsIChannel when the MediaResource is created. Safe to call from
   // any thread.
-  virtual const nsACString& GetContentType() const = 0;
+  virtual const nsCString& GetContentType() const = 0;
 };
 
 class BaseMediaResource : public MediaResource {
@@ -398,7 +398,7 @@ protected:
     MOZ_COUNT_DTOR(BaseMediaResource);
   }
 
-  virtual const nsACString& GetContentType() const MOZ_OVERRIDE
+  virtual const nsCString& GetContentType() const MOZ_OVERRIDE
   {
     return mContentType;
   }

content/media/wmf/WMFByteStream.cpp

@@ -162,7 +162,7 @@ WMFByteStream::Init()
                                 contentTypeUTF16.get());
     NS_ENSURE_TRUE(SUCCEEDED(hr), NS_ERROR_FAILURE);
 
-    LOG("WMFByteStream has Content-Type=%s", mResource->GetContentType());
+    LOG("WMFByteStream has Content-Type=%s", mResource->GetContentType().get());
   }
   return NS_OK;
 }