eliminate all warnings in non-thirdparty code on mac

Most of these issues were due to functions whose definitions appear in header files; I changed those functions to be 'static inline' instead of just 'static' or 'inline', which kills the warning for such functions.

Other functions that were static or anonymous-namespaced but were unused in cpp files were probably called at some point but are no longer; someone who knows more than I do should probably scrub all the functions I either deleted or #if 0'ed out and make sure that the right thing is happening here.

Lots of unused variables removed, and one nasty const issue handled.

There remains a single warning in thirdparty/externals/cityhash/src/city.cc on line 146 related to a signed/unsigned mismatch.  I don't know if we have control over this library so I didn't fix this one, but perhaps someone could do something about that one.

BUG=

Review URL: https://codereview.appspot.com/7067044

git-svn-id: http://skia.googlecode.com/svn/trunk@7051 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 1 insertions, 4 deletions

diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index f4c4cf60aa..6a312f3f3b 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -347,8 +347,7 @@ void SkGpuDevice::writePixels(const SkBitmap& bitmap, int x, int y,
 }
 
 namespace {
-void purgeClipCB(int genID, void* data) {
-    GrContext* context = (GrContext*) data;
+void purgeClipCB(int genID, void* ) {
 
     if (SkClipStack::kInvalidGenID == genID ||
         SkClipStack::kEmptyGenID == genID ||
@@ -1340,8 +1339,6 @@ void SkGpuDevice::internalDrawBitmap(const SkBitmap& bitmap,
         return;
     }
 
-    GrEffectStage* stage = grPaint->colorStage(kBitmapTextureIdx);
-
     GrTexture* texture;
     SkAutoCachedTexture act(this, bitmap, &params, &texture);
     if (NULL == texture) {