Remove GetInputStreamBufferSize() method from FilterContext.

net/base/filter.h

Index: net/base/filter.h
diff --git a/net/base/filter.h b/net/base/filter.h
index c6004e9d754385c96e419dd5fffc9d76947e68bb..b4bc4a400b4273093ea0e1f126ea6c631c0929d3 100644
--- a/net/base/filter.h
+++ b/net/base/filter.h
@@ -43,6 +43,7 @@ class GURL;
 
 namespace net {
 class IOBuffer;
+class SdchFilterChainingTest;
 }
 
 //------------------------------------------------------------------------------
@@ -94,13 +95,6 @@ class FilterContext {
   // For example: 200 is ok.   4xx are error codes. etc.
   virtual int GetResponseCode() const = 0;
 
-  // What is the desirable input buffer size for these filters?
-  // This value is currently supplied by the context, and is constant for all
-  // filters, even when they are part of a chain of filters. (i.e., we currently
-  // don't change the input buffer sizes for a linked chain of filters, and the
-  // buffer size for input to all filters in a chain is this one constant).
-  virtual int GetInputStreamBufferSize() const = 0;
-
   // The following method forces the context to emit a specific set of
   // statistics as selected by the argument.
   virtual void RecordPacketStats(StatisticSelector statistic) const = 0;
@@ -199,7 +193,11 @@ class Filter {
                                  std::vector<FilterType>* encoding_types);
 
  protected:
-  FRIEND_TEST_ALL_PREFIXES(SdchFilterTest, ContentTypeId);
+  FRIEND_TEST_ALL_PREFIXES(GZipUnitTest, DecodeWithSmallBuffer);
+  FRIEND_TEST_ALL_PREFIXES(GZipUnitTest, DecodeWithOneByteBuffer);
+  FRIEND_TEST_ALL_PREFIXES(GZipUnitTest,
+                           DecodeWithOneByteInputAndOutputBuffer);
+  friend class net::SdchFilterChainingTest;
 
   explicit Filter(const FilterContext& filter_context);
 
@@ -245,14 +243,13 @@ class Filter {
                                   const FilterContext& filter_context,
                                   Filter* filter_list);
 
-  // Allocates and initializes stream_buffer_ based on filter_context_.
-  // Establishes a buffer large enough to handle the amount specified in
-  // filter_context_.GetInputStreamBufferSize().
-  bool InitBuffer();
-
   // Helper function to empty our output into the next filter's input.
   void PushDataIntoNextFilter();
 
+  // Resets the filter's internal buffer to the given size. Should only
+  // be called in unit tests, and only immediately after filter construction.
+  void ResetInputBufferForTest(int size);
+
   // An optional filter to process output from this filter.
   scoped_ptr<Filter> next_filter_;
   // Remember what status or local filter last returned so we can better handle