The plain Makefile was using -Wall, but the gyp build wasn't.  This CL turns on
-Wall -Wextra and -Wno-unused in common.gypi.  This revealed a lot of warnings
(and some actual bugs), all of which I fixed here.  This is pretty mindless
stuff for the most part (order of intialization, missing initializers, && within
||, etc), but will allow us to build cleanly with -Wall and -Wextra (and
-Werror, if we so choose).

I put defaults into switches that were missing cases.  I could put in the actual
missing enums instead if that's desired.  I could also assert on missing enums
instead of break, if that's desired.  I wasn't sure how to test the stuff in
"animator", so that should be looked at a bit more closely.

Review URL:  http://codereview.appspot.com/4547055/



git-svn-id: http://skia.googlecode.com/svn/trunk@1386 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrTesselatedPathRenderer.cpp b/gpu/src/GrTesselatedPathRenderer.cpp
index 8a33012..51d6db8 100644
--- a/gpu/src/GrTesselatedPathRenderer.cpp
+++ b/gpu/src/GrTesselatedPathRenderer.cpp
@@ -116,7 +116,7 @@
         p = q;
     }
     GrDrawTarget::Edge prev_edge = *edges->back();
-    for (size_t i = 0; i < edges->count(); ++i) {
+    for (int i = 0; i < edges->count(); ++i) {
         GrDrawTarget::Edge edge = edges->at(i);
         vertices[i] = prev_edge.intersect(edge);
         inverse.mapPoints(&vertices[i], 1);
@@ -131,7 +131,6 @@
                                         GrPathFill fill,
                                         const GrPoint* translate) {
     GrDrawTarget::AutoStateRestore asr(target);
-    bool colorWritesWereDisabled = target->isColorWriteDisabled();
     // face culling doesn't make sense here
     GrAssert(GrDrawTarget::kBoth_DrawFace == target->getDrawFace());
 
@@ -255,7 +254,7 @@
             target->getViewInverse(&inverse);
 
             count = computeEdgesAndOffsetVertices(matrix, inverse, base, count, &edges);
-            int maxEdges = target->getMaxEdges();
+            size_t maxEdges = target->getMaxEdges();
             if (count <= maxEdges) {
                 // All edges fit; upload all edges and draw all verts as a fan
                 target->setVertexSourceToArray(layout, base, count);
@@ -308,7 +307,7 @@
     for (int sp = 0; sp < subpathCnt; ++sp) {
         internal_gluTessBeginContour(tess);
         int start = i;
-        int end = start + subpathVertCount[sp];
+        size_t end = start + subpathVertCount[sp];
         for (; i < end; ++i) {
             double* inVertex = &inVertices[i * 3];
             *vertices.append() = GrPoint::Make(inVertex[0], inVertex[1]);